-72.33% is the change from 506 to 140
Calculation steps:
[( 140 - 506 ) ÷ 506] x 100 = -72.33%
Formula
Percentage change = [(140 - 506) / 506] x 100
Subtract the new number by the original number
140 - 506 = -366
-366 ÷ 506 = -0.7233201581027668
-0.7233201581027668 x 100 = -72.33%