-99.14% is the change from 350 to 3
Calculation steps:
[( 3 - 350 ) ÷ 350] x 100 = -99.14%
Formula
Percentage change = [(3 - 350) / 350] x 100
Subtract the new number by the original number
3 - 350 = -347
-347 ÷ 350 = -0.9914285714285714
-0.9914285714285714 x 100 = -99.14%