21% is the change from 657 to 795
Calculation steps:
[( 795 - 657 ) ÷ 657] x 100 = 21%
Formula
Percentage change = [(795 - 657) / 657] x 100
Subtract the new number by the original number
795 - 657 = 138
138 ÷ 657 = 0.2100456621004566
0.2100456621004566 x 100 = 21%