-71.75% is the change from 531 to 150
Calculation steps:
[( 150 - 531 ) ÷ 531] x 100 = -71.75%
Formula
Percentage change = [(150 - 531) / 531] x 100
Subtract the new number by the original number
150 - 531 = -381
-381 ÷ 531 = -0.7175141242937854
-0.7175141242937854 x 100 = -71.75%