-80.36% is the change from 611 to 120
Calculation steps:
[( 120 - 611 ) ÷ 611] x 100 = -80.36%
Formula
Percentage change = [(120 - 611) / 611] x 100
Subtract the new number by the original number
120 - 611 = -491
-491 ÷ 611 = -0.8036006546644845
-0.8036006546644845 x 100 = -80.36%