-71.11% is the change from 540 to 156
Calculation steps:
[( 156 - 540 ) ÷ 540] x 100 = -71.11%
Formula
Percentage change = [(156 - 540) / 540] x 100
Subtract the new number by the original number
156 - 540 = -384
-384 ÷ 540 = -0.7111111111111111
-0.7111111111111111 x 100 = -71.11%