101.51% is the change from 199 to 401
Calculation steps:
[( 401 - 199 ) ÷ 199] x 100 = 101.51%
Formula
Percentage change = [(401 - 199) / 199] x 100
Subtract the new number by the original number
401 - 199 = 202
202 ÷ 199 = 1.015075376884422
1.015075376884422 x 100 = 101.51%