-9.98% is the change from 511 to 460
Calculation steps:
[( 460 - 511 ) ÷ 511] x 100 = -9.98%
Formula
Percentage change = [(460 - 511) / 511] x 100
Subtract the new number by the original number
460 - 511 = -51
-51 ÷ 511 = -0.09980430528375733
-0.09980430528375733 x 100 = -9.98%