-27.7% is the change from 509 to 368
Calculation steps:
[( 368 - 509 ) ÷ 509] x 100 = -27.7%
Formula
Percentage change = [(368 - 509) / 509] x 100
Subtract the new number by the original number
368 - 509 = -141
-141 ÷ 509 = -0.2770137524557957
-0.2770137524557957 x 100 = -27.7%