32.99% is the change from 688 to 915
Calculation steps:
[( 915 - 688 ) ÷ 688] x 100 = 32.99%
Formula
Percentage change = [(915 - 688) / 688] x 100
Subtract the new number by the original number
915 - 688 = 227
227 ÷ 688 = 0.32994186046511625
0.32994186046511625 x 100 = 32.99%