-49.39% is the change from 899 to 455
Calculation steps:
[( 455 - 899 ) ÷ 899] x 100 = -49.39%
Formula
Percentage change = [(455 - 899) / 899] x 100
Subtract the new number by the original number
455 - 899 = -444
-444 ÷ 899 = -0.4938820912124583
-0.4938820912124583 x 100 = -49.39%