-50.33% is the change from 900 to 447
Calculation steps:
[( 447 - 900 ) ÷ 900] x 100 = -50.33%
Formula
Percentage change = [(447 - 900) / 900] x 100
Subtract the new number by the original number
447 - 900 = -453
-453 ÷ 900 = -0.5033333333333333
-0.5033333333333333 x 100 = -50.33%