20.15% is the change from 809 to 972
Calculation steps:
[( 972 - 809 ) ÷ 809] x 100 = 20.15%
Formula
Percentage change = [(972 - 809) / 809] x 100
Subtract the new number by the original number
972 - 809 = 163
163 ÷ 809 = 0.20148331273176762
0.20148331273176762 x 100 = 20.15%