101.5% is the change from 200 to 403
Calculation steps:
[( 403 - 200 ) ÷ 200] x 100 = 101.5%
Formula
Percentage change = [(403 - 200) / 200] x 100
Subtract the new number by the original number
403 - 200 = 203
203 ÷ 200 = 1.015
1.015 x 100 = 101.5%
Example