200% is the change from 201 to 603
Calculation steps:
[( 603 - 201 ) ÷ 201] x 100 = 200%
Formula
Percentage change = [(603 - 201) / 201] x 100
Subtract the new number by the original number
603 - 201 = 402
402 ÷ 201 = 2
2 x 100 = 200%
Example