32.84% is the change from 612 to 813
Calculation steps:
[( 813 - 612 ) ÷ 612] x 100 = 32.84%
Formula
Percentage change = [(813 - 612) / 612] x 100
Subtract the new number by the original number
813 - 612 = 201
201 ÷ 612 = 0.3284313725490196
0.3284313725490196 x 100 = 32.84%