-74.46% is the change from 509 to 130
Calculation steps:
[( 130 - 509 ) ÷ 509] x 100 = -74.46%
Formula
Percentage change = [(130 - 509) / 509] x 100
Subtract the new number by the original number
130 - 509 = -379
-379 ÷ 509 = -0.7445972495088409
-0.7445972495088409 x 100 = -74.46%