-28.78% is the change from 483 to 344
Calculation steps:
[( 344 - 483 ) ÷ 483] x 100 = -28.78%
Formula
Percentage change = [(344 - 483) / 483] x 100
Subtract the new number by the original number
344 - 483 = -139
-139 ÷ 483 = -0.28778467908902694
-0.28778467908902694 x 100 = -28.78%