-99.71% is the change from 350 to 1
Calculation steps:
[( 1 - 350 ) ÷ 350] x 100 = -99.71%
Formula
Percentage change = [(1 - 350) / 350] x 100
Subtract the new number by the original number
1 - 350 = -349
-349 ÷ 350 = -0.9971428571428571
-0.9971428571428571 x 100 = -99.71%