-51.12% is the change from 448 to 219
Calculation steps:
[( 219 - 448 ) ÷ 448] x 100 = -51.12%
Formula
Percentage change = [(219 - 448) / 448] x 100
Subtract the new number by the original number
219 - 448 = -229
-229 ÷ 448 = -0.5111607142857143
-0.5111607142857143 x 100 = -51.12%