-15.98% is the change from 507 to 426
Calculation steps:
[( 426 - 507 ) ÷ 507] x 100 = -15.98%
Formula
Percentage change = [(426 - 507) / 507] x 100
Subtract the new number by the original number
426 - 507 = -81
-81 ÷ 507 = -0.15976331360946747
-0.15976331360946747 x 100 = -15.98%