31.77% is the change from 617 to 813
Calculation steps:
[( 813 - 617 ) ÷ 617] x 100 = 31.77%
Formula
Percentage change = [(813 - 617) / 617] x 100
Subtract the new number by the original number
813 - 617 = 196
196 ÷ 617 = 0.31766612641815234
0.31766612641815234 x 100 = 31.77%