Comprehensive Percentage Calculator

Perform all the percentage calculations you need quickly and easily: Discount, VAT, Markup, Rate and Original Value Finding.

Select the Type of Calculation You Want to Perform

Percentage Increase Calculator (Calculation Including Increase and VAT)

This calculator calculates the new value by increasing a given number by a certain percentage. This is useful, for example, when the price of an item has increased or you are wondering what the VAT will be after it is added.

Formula: New Value = Number A + (Number A * %B / 100)

Percentage Reduction Calculator (Calculation Excluding Discount and VAT)

This calculator calculates the remaining value by reducing a number you initially provide by a certain percentage. Useful for calculating discounted prices or subtracting VAT from a price.

Formula: New Value = Number A - (Number A * %B / 100)

What Percentage Calculator (Finding Ratio)

This calculator finds what percentage one number (A) is of another number (B). Great for expressing GPA, success rate, or any proportional relationship as a percentage.

Formula: Percentage = (Number A / Number B) * 100

Finding Percentage of a Number (Specific Percentage Value)

This calculator finds the value that corresponds to a certain percentile of a given number. Useful for finding the discount amount of a product, the commission to be paid, or a certain fraction of a whole.

Formula: Part Value = Number A * (%B / 100)

Original Value Calculator (Price Excluding VAT/Before Discount)

This calculator finds the value of the original whole (B) when a part (A) and the percentage it represents (C) are known. For example, it is used to find the price excluding VAT from a price including VAT, or the original price from a price after discount.

Formula: Whole Number = Number A / (%C / 100)

Percentage Increase/Decrease Calculator (Rate of Change)

This calculator finds the percentage change (increase or decrease) between two numbers. For example, it's useful for calculating how much the price of a stock has increased or how much the price of a product has decreased.

Formula: Percentage Change = ((Ending Value - Starting Value) / Starting Value) * 100

What is the Use of a Percentage Calculator?

Our **Percentage Calculator** allows you to perform various percentage-based calculations that are frequently encountered in daily life and business quickly and accurately. Whether you want to find the **discounted price** of a product, find a certain percentage of a number or calculate **prices including/excluding VAT**, this tool saves you time and simplifies complex calculations. It is especially ideal for your needs such as **calculating discounts online** or **finding markup rates**.

Main areas of use:

Financial Calculations: Financial analysis such as interest rates, investment returns, stock changes and **compound interest calculation**.
Shopping and Discounts: Instant discounted prices, **VAT rates**, price increases and **net price calculations**.
Education: Understanding percentiles of exam grades, interpreting statistical data and learning **data analysis**.
Business: Profit margins, growth rates, commission calculations, **budget planning** and cost analysis.
Daily Life: Adjusting ingredient ratios in recipes, calculating tips, and solving general **mathematical problems**.

How to Calculate? Percentage Calculation Formulas and Examples

Percentage calculations are based on basic mathematical formulas. The logic behind each option in our calculator is explained below. With these formulas, you can easily understand the answer to the question **how to find percentage**:

Increase number A by %B (Increase, Price Including VAT): Bu hesaplama, verilen bir sayının belirli bir yüzde kadar artırılması durumunda yeni değerin ne olacağını bulur. Genellikle ürün zamlarında veya KDV dahil fiyat hesaplamalarında kullanılır. $$ \text{Yeni Değer} = \text{A} + (\text{A} \times \frac{\text{B}}{100}) \quad \text{veya} \quad \text{A} \times (1 + \frac{\text{B}}{100}) $$
Örnek: 100 TL'ye %20 zam gelirse yeni fiyat: $100 + (100 \times \frac{20}{100}) = 100 + 20 = 120$ TL.
Reduce number A by %B (Discount, Price Excl. VAT): Bu seçenek, bir sayının belirli bir yüzde kadar azaltılması durumunda kalan değeri hesaplar. İndirimli fiyatları bulmak veya bir fiyattan KDV'yi çıkarmak için idealdir. $$ \text{Yeni Değer} = \text{A} - (\text{A} \times \frac{\text{B}}{100}) \quad \text{veya} \quad \text{A} \times (1 - \frac{\text{B}}{100}) $$
Örnek: 150 TL'lik bir ürüne %10 indirim gelirse ödenecek tutar: $150 - (150 \times \frac{10}{100}) = 150 - 15 = 135$ TL.
What percentage of number A is number B?: Bu hesaplama, bir sayının (A) başka bir sayıya (B) oranının yüzde olarak ifadesini verir. Oran bulma veya performans değerlendirmelerinde sıkça kullanılır. $$ \text{Yüzde} = (\frac{\text{A}}{\text{B}}) \times 100 $$
Örnek: 20 sayısı 80 sayısının yüzde kaçıdır?: $(\frac{20}{80}) \times 100 = 0.25 \times 100 = 25\%$
What is %B of A?: Bu, verilen bir sayının belirli bir yüzdelik dilimine karşılık gelen değeri bulur. Komisyon, vergi veya belirli bir payın hesaplanmasında kullanılır. $$ \text{Parça Değer} = \text{A} \times (\frac{\text{B}}{100}) $$
Örnek: 200'ün %15'i kaçtır?: $200 \times (\frac{15}{100}) = 200 \times 0.15 = 30$
If number A is %C of number B, what is number B? (Find Original Value): Bu hesaplama, bir parçanın (A) ve bu parçanın temsil ettiği yüzdelik oranın (C) bilindiği durumlarda orijinal bütünün (B) değerini bulur. Özellikle KDV hariç fiyatı veya bir indirimin orijinal fiyatını bulmak için kullanışlıdır. $$ \text{Bütün Sayı} = \frac{\text{A}}{(\frac{\text{C}}{100})} $$
Örnek: 30 sayısı %20'ye denk geliyorsa orijinal sayı kaçtır?: $\frac{30}{(\frac{20}{100})} = \frac{30}{0.20} = 150$
Percentage Increase/Decrease (Rate of Change): İki sayı arasındaki yüzde değişimini (artış veya azalış) hesaplar. Negatif sonuç azalışı, pozitif sonuç artışı gösterir. $$ \text{Yüzde Değişim} = \left( \frac{\text{Bitiş Değeri} - \text{Başlangıç Değeri}}{\text{Başlangıç Değeri}} \right) \times 100 $$
Örnek 1: 100 TL'den 120 TL'ye artış: $(\frac{120 - 100}{100}) \times 100 = 20\%$ artış.

Örnek 2: 100 TL'den 80 TL'ye azalış: $(\frac{80 - 100}{100}) \times 100 = -20\%$ azalış.

These formulas form the basic logic behind our calculator and provide you with accurate results. For more information and other calculators, please visit our site.