-48.07% is the change from 285 to 148
Calculation steps:
[( 148 - 285 ) ÷ 285] x 100 = -48.07%
Formula
Percentage change = [(148 - 285) / 285] x 100
Subtract the new number by the original number
148 - 285 = -137
-137 ÷ 285 = -0.4807017543859649
-0.4807017543859649 x 100 = -48.07%