-10.51% is the change from 447 to 400
Calculation steps:
[( 400 - 447 ) ÷ 447] x 100 = -10.51%
Formula
Percentage change = [(400 - 447) / 447] x 100
Subtract the new number by the original number
400 - 447 = -47
-47 ÷ 447 = -0.10514541387024609
-0.10514541387024609 x 100 = -10.51%