-67.64% is the change from 791 to 256
Calculation steps:
[( 256 - 791 ) ÷ 791] x 100 = -67.64%
Formula
Percentage change = [(256 - 791) / 791] x 100
Subtract the new number by the original number
256 - 791 = -535
-535 ÷ 791 = -0.6763590391908976
-0.6763590391908976 x 100 = -67.64%