-87.41% is the change from 540 to 68
Calculation steps:
[( 68 - 540 ) ÷ 540] x 100 = -87.41%
Formula
Percentage change = [(68 - 540) / 540] x 100
Subtract the new number by the original number
68 - 540 = -472
-472 ÷ 540 = -0.8740740740740741
-0.8740740740740741 x 100 = -87.41%