18.68% is the change from 771 to 915
Calculation steps:
[( 915 - 771 ) ÷ 771] x 100 = 18.68%
Formula
Percentage change = [(915 - 771) / 771] x 100
Subtract the new number by the original number
915 - 771 = 144
144 ÷ 771 = 0.1867704280155642
0.1867704280155642 x 100 = 18.68%