199.1% is the change from 334 to 999
Calculation steps:
[( 999 - 334 ) ÷ 334] x 100 = 199.1%
Formula
Percentage change = [(999 - 334) / 334] x 100
Subtract the new number by the original number
999 - 334 = 665
665 ÷ 334 = 1.9910179640718564
1.9910179640718564 x 100 = 199.1%