-74.25% is the change from 994 to 256
Calculation steps:
[( 256 - 994 ) ÷ 994] x 100 = -74.25%
Formula
Percentage change = [(256 - 994) / 994] x 100
Subtract the new number by the original number
256 - 994 = -738
-738 ÷ 994 = -0.7424547283702213
-0.7424547283702213 x 100 = -74.25%