-28.65% is the change from 349 to 249
Calculation steps:
[( 249 - 349 ) ÷ 349] x 100 = -28.65%
Formula
Percentage change = [(249 - 349) / 349] x 100
Subtract the new number by the original number
249 - 349 = -100
-100 ÷ 349 = -0.28653295128939826
-0.28653295128939826 x 100 = -28.65%