-49.83% is the change from 287 to 144
Calculation steps:
[( 144 - 287 ) ÷ 287] x 100 = -49.83%
Formula
Percentage change = [(144 - 287) / 287] x 100
Subtract the new number by the original number
144 - 287 = -143
-143 ÷ 287 = -0.49825783972125437
-0.49825783972125437 x 100 = -49.83%