37.35% is the change from 166 to 228
Calculation steps:
[( 228 - 166 ) ÷ 166] x 100 = 37.35%
Formula
Percentage change = [(228 - 166) / 166] x 100
Subtract the new number by the original number
228 - 166 = 62
62 ÷ 166 = 0.37349397590361444
0.37349397590361444 x 100 = 37.35%