20.81% is the change from 817 to 987
Calculation steps:
[( 987 - 817 ) ÷ 817] x 100 = 20.81%
Formula
Percentage change = [(987 - 817) / 817] x 100
Subtract the new number by the original number
987 - 817 = 170
170 ÷ 817 = 0.20807833537331702
0.20807833537331702 x 100 = 20.81%