-85.01% is the change from 507 to 76
Calculation steps:
[( 76 - 507 ) ÷ 507] x 100 = -85.01%
Formula
Percentage change = [(76 - 507) / 507] x 100
Subtract the new number by the original number
76 - 507 = -431
-431 ÷ 507 = -0.8500986193293886
-0.8500986193293886 x 100 = -85.01%