70.56% is the change from 180 to 307
Calculation steps:
[( 307 - 180 ) ÷ 180] x 100 = 70.56%
Formula
Percentage change = [(307 - 180) / 180] x 100
Subtract the new number by the original number
307 - 180 = 127
127 ÷ 180 = 0.7055555555555556
0.7055555555555556 x 100 = 70.56%