-9.17% is the change from 447 to 406
Calculation steps:
[( 406 - 447 ) ÷ 447] x 100 = -9.17%
Formula
Percentage change = [(406 - 447) / 447] x 100
Subtract the new number by the original number
406 - 447 = -41
-41 ÷ 447 = -0.09172259507829977
-0.09172259507829977 x 100 = -9.17%