-50.69% is the change from 144 to 71
Calculation steps:
[( 71 - 144 ) ÷ 144] x 100 = -50.69%
Formula
Percentage change = [(71 - 144) / 144] x 100
Subtract the new number by the original number
71 - 144 = -73
-73 ÷ 144 = -0.5069444444444444
-0.5069444444444444 x 100 = -50.69%