-45.21% is the change from 584 to 320
Calculation steps:
[( 320 - 584 ) ÷ 584] x 100 = -45.21%
Formula
Percentage change = [(320 - 584) / 584] x 100
Subtract the new number by the original number
320 - 584 = -264
-264 ÷ 584 = -0.4520547945205479
-0.4520547945205479 x 100 = -45.21%