-97.42% is the change from 349 to 9
Calculation steps:
[( 9 - 349 ) ÷ 349] x 100 = -97.42%
Formula
Percentage change = [(9 - 349) / 349] x 100
Subtract the new number by the original number
9 - 349 = -340
-340 ÷ 349 = -0.9742120343839542
-0.9742120343839542 x 100 = -97.42%