23.11% is the change from 662 to 815
Calculation steps:
[( 815 - 662 ) ÷ 662] x 100 = 23.11%
Formula
Percentage change = [(815 - 662) / 662] x 100
Subtract the new number by the original number
815 - 662 = 153
153 ÷ 662 = 0.2311178247734139
0.2311178247734139 x 100 = 23.11%