-28.57% is the change from 483 to 345
Calculation steps:
[( 345 - 483 ) ÷ 483] x 100 = -28.57%
Formula
Percentage change = [(345 - 483) / 483] x 100
Subtract the new number by the original number
345 - 483 = -138
-138 ÷ 483 = -0.2857142857142857
-0.2857142857142857 x 100 = -28.57%