200% is the change from 199 to 597
Calculation steps:
[( 597 - 199 ) ÷ 199] x 100 = 200%
Formula
Percentage change = [(597 - 199) / 199] x 100
Subtract the new number by the original number
597 - 199 = 398
398 ÷ 199 = 2
2 x 100 = 200%
Example