-44.97% is the change from 507 to 279
Calculation steps:
[( 279 - 507 ) ÷ 507] x 100 = -44.97%
Formula
Percentage change = [(279 - 507) / 507] x 100
Subtract the new number by the original number
279 - 507 = -228
-228 ÷ 507 = -0.44970414201183434
-0.44970414201183434 x 100 = -44.97%