-20.58% is the change from 447 to 355
Calculation steps:
[( 355 - 447 ) ÷ 447] x 100 = -20.58%
Formula
Percentage change = [(355 - 447) / 447] x 100
Subtract the new number by the original number
355 - 447 = -92
-92 ÷ 447 = -0.2058165548098434
-0.2058165548098434 x 100 = -20.58%