-85.42% is the change from 144 to 21
Calculation steps:
[( 21 - 144 ) ÷ 144] x 100 = -85.42%
Formula
Percentage change = [(21 - 144) / 144] x 100
Subtract the new number by the original number
21 - 144 = -123
-123 ÷ 144 = -0.8541666666666666
-0.8541666666666666 x 100 = -85.42%