156.92% is the change from 318 to 817
Calculation steps:
[( 817 - 318 ) ÷ 318] x 100 = 156.92%
Formula
Percentage change = [(817 - 318) / 318] x 100
Subtract the new number by the original number
817 - 318 = 499
499 ÷ 318 = 1.569182389937107
1.569182389937107 x 100 = 156.92%