-49.04% is the change from 675 to 344
Calculation steps:
[( 344 - 675 ) ÷ 675] x 100 = -49.04%
Formula
Percentage change = [(344 - 675) / 675] x 100
Subtract the new number by the original number
344 - 675 = -331
-331 ÷ 675 = -0.49037037037037035
-0.49037037037037035 x 100 = -49.04%