-97.14% is the change from 350 to 10
Calculation steps:
[( 10 - 350 ) ÷ 350] x 100 = -97.14%
Formula
Percentage change = [(10 - 350) / 350] x 100
Subtract the new number by the original number
10 - 350 = -340
-340 ÷ 350 = -0.9714285714285714
-0.9714285714285714 x 100 = -97.14%