18.04% is the change from 815 to 962
Calculation steps:
[( 962 - 815 ) ÷ 815] x 100 = 18.04%
Formula
Percentage change = [(962 - 815) / 815] x 100
Subtract the new number by the original number
962 - 815 = 147
147 ÷ 815 = 0.18036809815950922
0.18036809815950922 x 100 = 18.04%