-79.71% is the change from 611 to 124
Calculation steps:
[( 124 - 611 ) ÷ 611] x 100 = -79.71%
Formula
Percentage change = [(124 - 611) / 611] x 100
Subtract the new number by the original number
124 - 611 = -487
-487 ÷ 611 = -0.7970540098199672
-0.7970540098199672 x 100 = -79.71%