-55.37% is the change from 307 to 137
Calculation steps:
[( 137 - 307 ) ÷ 307] x 100 = -55.37%
Formula
Percentage change = [(137 - 307) / 307] x 100
Subtract the new number by the original number
137 - 307 = -170
-170 ÷ 307 = -0.5537459283387622
-0.5537459283387622 x 100 = -55.37%