20.38% is the change from 682 to 821
Calculation steps:
[( 821 - 682 ) ÷ 682] x 100 = 20.38%
Formula
Percentage change = [(821 - 682) / 682] x 100
Subtract the new number by the original number
821 - 682 = 139
139 ÷ 682 = 0.20381231671554254
0.20381231671554254 x 100 = 20.38%