-15.44% is the change from 447 to 378
Calculation steps:
[( 378 - 447 ) ÷ 447] x 100 = -15.44%
Formula
Percentage change = [(378 - 447) / 447] x 100
Subtract the new number by the original number
378 - 447 = -69
-69 ÷ 447 = -0.15436241610738255
-0.15436241610738255 x 100 = -15.44%