-67.51% is the change from 788 to 256
Calculation steps:
[( 256 - 788 ) ÷ 788] x 100 = -67.51%
Formula
Percentage change = [(256 - 788) / 788] x 100
Subtract the new number by the original number
256 - 788 = -532
-532 ÷ 788 = -0.6751269035532995
-0.6751269035532995 x 100 = -67.51%