-99.4% is the change from 334 to 2
Calculation steps:
[( 2 - 334 ) ÷ 334] x 100 = -99.4%
Formula
Percentage change = [(2 - 334) / 334] x 100
Subtract the new number by the original number
2 - 334 = -332
-332 ÷ 334 = -0.9940119760479041
-0.9940119760479041 x 100 = -99.4%