74.03% is the change from 181 to 315
Calculation steps:
[( 315 - 181 ) ÷ 181] x 100 = 74.03%
Formula
Percentage change = [(315 - 181) / 181] x 100
Subtract the new number by the original number
315 - 181 = 134
134 ÷ 181 = 0.7403314917127072
0.7403314917127072 x 100 = 74.03%