19.49% is the change from 821 to 981
Calculation steps:
[( 981 - 821 ) ÷ 821] x 100 = 19.49%
Formula
Percentage change = [(981 - 821) / 821] x 100
Subtract the new number by the original number
981 - 821 = 160
160 ÷ 821 = 0.19488428745432398
0.19488428745432398 x 100 = 19.49%