Percentage Calculator is a free, fast tool that solves any percentage problem and shows you every step of the process. Unlike basic calculators that just give you a number, this tool shows: What is X% of Y? X is what % of Y? Percentage increase/decrease Step-by-step calculation method Perfect for students, shoppers, finance folks or anyone who needs quick and accurate percentage calculations. Also includes: Square Root Calculator, GPA Calculator, and Ratio Calculator all free, no login required.