-9.4% is the change from 447 to 405
Calculation steps:
[( 405 - 447 ) ÷ 447] x 100 = -9.4%
Formula
Percentage change = [(405 - 447) / 447] x 100
Subtract the new number by the original number
405 - 447 = -42
-42 ÷ 447 = -0.09395973154362416
-0.09395973154362416 x 100 = -9.4%