UtilitiesVault
4-in-1 Financial Math Utility

Percentage Calculator

Quickly solve standard percentage equations, calculate growth rates, find sale discounts, or split bills with custom tips.

What is 15% of 250?

What is%
of=
37.50

45 is what percent of 300?

is what % of=
15.00%

Core Percentage Formulas Explained

1. Percentage of a Number:P = (X / 100) × Y

Example: 20% of 150 = (20 / 100) × 150 = 30.

2. Percentage Difference:Change% = ((V2 - V1) / V1) × 100

Example: An increase from 50 to 75 = ((75 - 50) / 50) × 100 = +50%.

Frequently Asked Questions

How does the bill tip splitter work?

The calculator multiplies your pre-tax bill by your chosen tip rate, sums the total, and divides the grand total equally across all guests at your table.