-97.96% is the change from 540 to 11
Calculation steps:
[( 11 - 540 ) ÷ 540] x 100 = -97.96%
Formula
Percentage change = [(11 - 540) / 540] x 100
Subtract the new number by the original number
11 - 540 = -529
-529 ÷ 540 = -0.9796296296296296
-0.9796296296296296 x 100 = -97.96%