-51.79% is the change from 307 to 148
Calculation steps:
[( 148 - 307 ) ÷ 307] x 100 = -51.79%
Formula
Percentage change = [(148 - 307) / 307] x 100
Subtract the new number by the original number
148 - 307 = -159
-159 ÷ 307 = -0.5179153094462541
-0.5179153094462541 x 100 = -51.79%