-77.12% is the change from 542 to 124
Calculation steps:
[( 124 - 542 ) ÷ 542] x 100 = -77.12%
Formula
Percentage change = [(124 - 542) / 542] x 100
Subtract the new number by the original number
124 - 542 = -418
-418 ÷ 542 = -0.7712177121771218
-0.7712177121771218 x 100 = -77.12%