-76.11% is the change from 540 to 129
Calculation steps:
[( 129 - 540 ) ÷ 540] x 100 = -76.11%
Formula
Percentage change = [(129 - 540) / 540] x 100
Subtract the new number by the original number
129 - 540 = -411
-411 ÷ 540 = -0.7611111111111111
-0.7611111111111111 x 100 = -76.11%