-72.23% is the change from 922 to 256
Calculation steps:
[( 256 - 922 ) ÷ 922] x 100 = -72.23%
Formula
Percentage change = [(256 - 922) / 922] x 100
Subtract the new number by the original number
256 - 922 = -666
-666 ÷ 922 = -0.7223427331887202
-0.7223427331887202 x 100 = -72.23%