-10.02% is the change from 509 to 458
Calculation steps:
[( 458 - 509 ) ÷ 509] x 100 = -10.02%
Formula
Percentage change = [(458 - 509) / 509] x 100
Subtract the new number by the original number
458 - 509 = -51
-51 ÷ 509 = -0.10019646365422397
-0.10019646365422397 x 100 = -10.02%