-71.41% is the change from 899 to 257
Calculation steps:
[( 257 - 899 ) ÷ 899] x 100 = -71.41%
Formula
Percentage change = [(257 - 899) / 899] x 100
Subtract the new number by the original number
257 - 899 = -642
-642 ÷ 899 = -0.71412680756396
-0.71412680756396 x 100 = -71.41%