-51.01% is the change from 447 to 219
Calculation steps:
[( 219 - 447 ) ÷ 447] x 100 = -51.01%
Formula
Percentage change = [(219 - 447) / 447] x 100
Subtract the new number by the original number
219 - 447 = -228
-228 ÷ 447 = -0.5100671140939598
-0.5100671140939598 x 100 = -51.01%