36.84% is the change from 171 to 234
Calculation steps:
[( 234 - 171 ) ÷ 171] x 100 = 36.84%
Formula
Percentage change = [(234 - 171) / 171] x 100
Subtract the new number by the original number
234 - 171 = 63
63 ÷ 171 = 0.3684210526315789
0.3684210526315789 x 100 = 36.84%