-47.35% is the change from 509 to 268
Calculation steps:
[( 268 - 509 ) ÷ 509] x 100 = -47.35%
Formula
Percentage change = [(268 - 509) / 509] x 100
Subtract the new number by the original number
268 - 509 = -241
-241 ÷ 509 = -0.47347740667976423
-0.47347740667976423 x 100 = -47.35%