# If a number is increased from 50 to 80 what is the percent increase?

The increase is **60%**

### What is the definition of percent of increase?

Percent of increase is the product of changes in price over the original price with 100%. That is: percent increase = (changes in price/original price) x 100%. For example: In a year period, the price of a stock increased from 50 dollars a share to 59 dollars a share. To find the percent of increase in the share price, compare the change in price to the original price: percent increase = (changes in price/original price)…