-43.97% is the change from 307 to 172
Calculation steps:
[( 172 - 307 ) ÷ 307] x 100 = -43.97%
Formula
Percentage change = [(172 - 307) / 307] x 100
Subtract the new number by the original number
172 - 307 = -135
-135 ÷ 307 = -0.43973941368078173
-0.43973941368078173 x 100 = -43.97%