-46.89% is the change from 900 to 478
Calculation steps:
[( 478 - 900 ) ÷ 900] x 100 = -46.89%
Formula
Percentage change = [(478 - 900) / 900] x 100
Subtract the new number by the original number
478 - 900 = -422
-422 ÷ 900 = -0.4688888888888889
-0.4688888888888889 x 100 = -46.89%