328.51% is the change from 221 to 947
Calculation steps:
[( 947 - 221 ) ÷ 221] x 100 = 328.51%
Formula
Percentage change = [(947 - 221) / 221] x 100
Subtract the new number by the original number
947 - 221 = 726
726 ÷ 221 = 3.2850678733031673
3.2850678733031673 x 100 = 328.51%
Example