8.82% is the change from 170 to 185
Calculation steps:
[( 185 - 170 ) ÷ 170] x 100 = 8.82%
Formula
Percentage change = [(185 - 170) / 170] x 100
Subtract the new number by the original number
185 - 170 = 15
15 ÷ 170 = 0.08823529411764706
0.08823529411764706 x 100 = 8.82%