-48.43% is the change from 287 to 148
Calculation steps:
[( 148 - 287 ) ÷ 287] x 100 = -48.43%
Formula
Percentage change = [(148 - 287) / 287] x 100
Subtract the new number by the original number
148 - 287 = -139
-139 ÷ 287 = -0.4843205574912892
-0.4843205574912892 x 100 = -48.43%