# Percentage Calculator 3 in 1

In mathematics, a percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", or the abbreviation "pct."; sometimes the abbreviation "pc" is used in the case of quantities in economics. Want to calculate what percent represents a number from another number (example 4 out of 9)? Do you want to determine how much is X% of a number (ex 27% of 89)? You might try to figure out how what is the percentage increase or decrease from to (eg: from 67 to 56) ? Use this free application to do your calculations. With this free app you will be able to solve various math problems , solve your homework, find out how much is the tip to the waiter, to the supermarket, at the baker , solve fractions, formula or equations, etc.