20.54% is the change from 662 to 798
Calculation steps:
[( 798 - 662 ) ÷ 662] x 100 = 20.54%
Formula
Percentage change = [(798 - 662) / 662] x 100
Subtract the new number by the original number
798 - 662 = 136
136 ÷ 662 = 0.2054380664652568
0.2054380664652568 x 100 = 20.54%