-42.75% is the change from 559 to 320
Calculation steps:
[( 320 - 559 ) ÷ 559] x 100 = -42.75%
Formula
Percentage change = [(320 - 559) / 559] x 100
Subtract the new number by the original number
320 - 559 = -239
-239 ÷ 559 = -0.4275491949910555
-0.4275491949910555 x 100 = -42.75%