347.98% is the change from 223 to 999
Calculation steps:
[( 999 - 223 ) ÷ 223] x 100 = 347.98%
Formula
Percentage change = [(999 - 223) / 223] x 100
Subtract the new number by the original number
999 - 223 = 776
776 ÷ 223 = 3.4798206278026904
3.4798206278026904 x 100 = 347.98%