18.16% is the change from 815 to 963
Calculation steps:
[( 963 - 815 ) ÷ 815] x 100 = 18.16%
Formula
Percentage change = [(963 - 815) / 815] x 100
Subtract the new number by the original number
963 - 815 = 148
148 ÷ 815 = 0.18159509202453988
0.18159509202453988 x 100 = 18.16%