PercentageTools.com - Percentage calculator, online calculates percentage in many situations, simply enter the numbers and get the result and the formula of calculation.
Percentage Calculator - The percentage calculator to make your life easier
PercentCalculator - Education & Reference
Fraction-Calculator.net - Access this 100% free and dependable online calculators designed to effortlessly solve fraction-related calculation problems, delivering precise and accurate results.
Cent - A network for Universal Creative Income.
Off Of - A Simple Percentage Calculator for iOS