-44.77% is the change from 507 to 280
Calculation steps:
[( 280 - 507 ) ÷ 507] x 100 = -44.77%
Formula
Percentage change = [(280 - 507) / 507] x 100
Subtract the new number by the original number
280 - 507 = -227
-227 ÷ 507 = -0.4477317554240631
-0.4477317554240631 x 100 = -44.77%