-73.98% is the change from 984 to 256
Calculation steps:
[( 256 - 984 ) ÷ 984] x 100 = -73.98%
Formula
Percentage change = [(256 - 984) / 984] x 100
Subtract the new number by the original number
256 - 984 = -728
-728 ÷ 984 = -0.7398373983739838
-0.7398373983739838 x 100 = -73.98%