242% is the change from 200 to 684
Calculation steps:
[( 684 - 200 ) ÷ 200] x 100 = 242%
Formula
Percentage change = [(684 - 200) / 200] x 100
Subtract the new number by the original number
684 - 200 = 484
484 ÷ 200 = 2.42
2.42 x 100 = 242%
Example