-99.13% is the change from 344 to 3
Calculation steps:
[( 3 - 344 ) ÷ 344] x 100 = -99.13%
Formula
Percentage change = [(3 - 344) / 344] x 100
Subtract the new number by the original number
3 - 344 = -341
-341 ÷ 344 = -0.9912790697674418
-0.9912790697674418 x 100 = -99.13%