20.23% is the change from 682 to 820
Calculation steps:
[( 820 - 682 ) ÷ 682] x 100 = 20.23%
Formula
Percentage change = [(820 - 682) / 682] x 100
Subtract the new number by the original number
820 - 682 = 138
138 ÷ 682 = 0.20234604105571846
0.20234604105571846 x 100 = 20.23%