-74.61% is the change from 256 to 65
Calculation steps:
[( 65 - 256 ) ÷ 256] x 100 = -74.61%
Formula
Percentage change = [(65 - 256) / 256] x 100
Subtract the new number by the original number
65 - 256 = -191
-191 ÷ 256 = -0.74609375
-0.74609375 x 100 = -74.61%