180.54% is the change from 221 to 620
Calculation steps:
[( 620 - 221 ) ÷ 221] x 100 = 180.54%
Formula
Percentage change = [(620 - 221) / 221] x 100
Subtract the new number by the original number
620 - 221 = 399
399 ÷ 221 = 1.8054298642533937
1.8054298642533937 x 100 = 180.54%