-52.12% is the change from 307 to 147
Calculation steps:
[( 147 - 307 ) ÷ 307] x 100 = -52.12%
Formula
Percentage change = [(147 - 307) / 307] x 100
Subtract the new number by the original number
147 - 307 = -160
-160 ÷ 307 = -0.5211726384364821
-0.5211726384364821 x 100 = -52.12%