-10.39% is the change from 385 to 345
Calculation steps:
[( 345 - 385 ) ÷ 385] x 100 = -10.39%
Formula
Percentage change = [(345 - 385) / 385] x 100
Subtract the new number by the original number
345 - 385 = -40
-40 ÷ 385 = -0.1038961038961039
-0.1038961038961039 x 100 = -10.39%