-68.15% is the change from 540 to 172
Calculation steps:
[( 172 - 540 ) ÷ 540] x 100 = -68.15%
Formula
Percentage change = [(172 - 540) / 540] x 100
Subtract the new number by the original number
172 - 540 = -368
-368 ÷ 540 = -0.6814814814814815
-0.6814814814814815 x 100 = -68.15%