-18.62% is the change from 349 to 284
Calculation steps:
[( 284 - 349 ) ÷ 349] x 100 = -18.62%
Formula
Percentage change = [(284 - 349) / 349] x 100
Subtract the new number by the original number
284 - 349 = -65
-65 ÷ 349 = -0.18624641833810887
-0.18624641833810887 x 100 = -18.62%