18.77% is the change from 815 to 968
Calculation steps:
[( 968 - 815 ) ÷ 815] x 100 = 18.77%
Formula
Percentage change = [(968 - 815) / 815] x 100
Subtract the new number by the original number
968 - 815 = 153
153 ÷ 815 = 0.18773006134969325
0.18773006134969325 x 100 = 18.77%