-24.77% is the change from 642 to 483
Calculation steps:
[( 483 - 642 ) ÷ 642] x 100 = -24.77%
Formula
Percentage change = [(483 - 642) / 642] x 100
Subtract the new number by the original number
483 - 642 = -159
-159 ÷ 642 = -0.24766355140186916
-0.24766355140186916 x 100 = -24.77%