161.59% is the change from 315 to 824
Calculation steps:
[( 824 - 315 ) ÷ 315] x 100 = 161.59%
Formula
Percentage change = [(824 - 315) / 315] x 100
Subtract the new number by the original number
824 - 315 = 509
509 ÷ 315 = 1.615873015873016
1.615873015873016 x 100 = 161.59%