-47.15% is the change from 509 to 269
Calculation steps:
[( 269 - 509 ) ÷ 509] x 100 = -47.15%
Formula
Percentage change = [(269 - 509) / 509] x 100
Subtract the new number by the original number
269 - 509 = -240
-240 ÷ 509 = -0.4715127701375246
-0.4715127701375246 x 100 = -47.15%