-69.81% is the change from 540 to 163
Calculation steps:
[( 163 - 540 ) ÷ 540] x 100 = -69.81%
Formula
Percentage change = [(163 - 540) / 540] x 100
Subtract the new number by the original number
163 - 540 = -377
-377 ÷ 540 = -0.6981481481481482
-0.6981481481481482 x 100 = -69.81%