-71.2% is the change from 500 to 144
Calculation steps:
[( 144 - 500 ) ÷ 500] x 100 = -71.2%
Formula
Percentage change = [(144 - 500) / 500] x 100
Subtract the new number by the original number
144 - 500 = -356
-356 ÷ 500 = -0.712
-0.712 x 100 = -71.2%