-29.08% is the change from 447 to 317
Calculation steps:
[( 317 - 447 ) ÷ 447] x 100 = -29.08%
Formula
Percentage change = [(317 - 447) / 447] x 100
Subtract the new number by the original number
317 - 447 = -130
-130 ÷ 447 = -0.29082774049217003
-0.29082774049217003 x 100 = -29.08%