-12.21% is the change from 393 to 345
Calculation steps:
[( 345 - 393 ) ÷ 393] x 100 = -12.21%
Formula
Percentage change = [(345 - 393) / 393] x 100
Subtract the new number by the original number
345 - 393 = -48
-48 ÷ 393 = -0.12213740458015267
-0.12213740458015267 x 100 = -12.21%