-49.54% is the change from 434 to 219
Calculation steps:
[( 219 - 434 ) ÷ 434] x 100 = -49.54%
Formula
Percentage change = [(219 - 434) / 434] x 100
Subtract the new number by the original number
219 - 434 = -215
-215 ÷ 434 = -0.49539170506912444
-0.49539170506912444 x 100 = -49.54%