-11.24% is the change from 347 to 308
Calculation steps:
[( 308 - 347 ) ÷ 347] x 100 = -11.24%
Formula
Percentage change = [(308 - 347) / 347] x 100
Subtract the new number by the original number
308 - 347 = -39
-39 ÷ 347 = -0.11239193083573487
-0.11239193083573487 x 100 = -11.24%