338.91% is the change from 221 to 970
Calculation steps:
[( 970 - 221 ) ÷ 221] x 100 = 338.91%
Formula
Percentage change = [(970 - 221) / 221] x 100
Subtract the new number by the original number
970 - 221 = 749
749 ÷ 221 = 3.3891402714932126
3.3891402714932126 x 100 = 338.91%