216.74% is the change from 221 to 700
Calculation steps:
[( 700 - 221 ) ÷ 221] x 100 = 216.74%
Formula
Percentage change = [(700 - 221) / 221] x 100
Subtract the new number by the original number
700 - 221 = 479
479 ÷ 221 = 2.167420814479638
2.167420814479638 x 100 = 216.74%