-71.3% is the change from 892 to 256
Calculation steps:
[( 256 - 892 ) ÷ 892] x 100 = -71.3%
Formula
Percentage change = [(256 - 892) / 892] x 100
Subtract the new number by the original number
256 - 892 = -636
-636 ÷ 892 = -0.7130044843049327
-0.7130044843049327 x 100 = -71.3%