-8.45% is the change from 509 to 466
Calculation steps:
[( 466 - 509 ) ÷ 509] x 100 = -8.45%
Formula
Percentage change = [(466 - 509) / 509] x 100
Subtract the new number by the original number
466 - 509 = -43
-43 ÷ 509 = -0.08447937131630648
-0.08447937131630648 x 100 = -8.45%