202.37% is the change from 211 to 638
Calculation steps:
[( 638 - 211 ) ÷ 211] x 100 = 202.37%
Formula
Percentage change = [(638 - 211) / 211] x 100
Subtract the new number by the original number
638 - 211 = 427
427 ÷ 211 = 2.023696682464455
2.023696682464455 x 100 = 202.37%