-90.26% is the change from 349 to 34
Calculation steps:
[( 34 - 349 ) ÷ 349] x 100 = -90.26%
Formula
Percentage change = [(34 - 349) / 349] x 100
Subtract the new number by the original number
34 - 349 = -315
-315 ÷ 349 = -0.9025787965616046
-0.9025787965616046 x 100 = -90.26%