-20.36% is the change from 447 to 356
Calculation steps:
[( 356 - 447 ) ÷ 447] x 100 = -20.36%
Formula
Percentage change = [(356 - 447) / 447] x 100
Subtract the new number by the original number
356 - 447 = -91
-91 ÷ 447 = -0.203579418344519
-0.203579418344519 x 100 = -20.36%