-75.54% is the change from 507 to 124
Calculation steps:
[( 124 - 507 ) ÷ 507] x 100 = -75.54%
Formula
Percentage change = [(124 - 507) / 507] x 100
Subtract the new number by the original number
124 - 507 = -383
-383 ÷ 507 = -0.7554240631163708
-0.7554240631163708 x 100 = -75.54%