23.55% is the change from 688 to 850
Calculation steps:
[( 850 - 688 ) ÷ 688] x 100 = 23.55%
Formula
Percentage change = [(850 - 688) / 688] x 100
Subtract the new number by the original number
850 - 688 = 162
162 ÷ 688 = 0.23546511627906977
0.23546511627906977 x 100 = 23.55%