-30.89% is the change from 845 to 584
Calculation steps:
[( 584 - 845 ) ÷ 845] x 100 = -30.89%
Formula
Percentage change = [(584 - 845) / 845] x 100
Subtract the new number by the original number
584 - 845 = -261
-261 ÷ 845 = -0.3088757396449704
-0.3088757396449704 x 100 = -30.89%