18.12% is the change from 690 to 815
Calculation steps:
[( 815 - 690 ) ÷ 690] x 100 = 18.12%
Formula
Percentage change = [(815 - 690) / 690] x 100
Subtract the new number by the original number
815 - 690 = 125
125 ÷ 690 = 0.18115942028985507
0.18115942028985507 x 100 = 18.12%