-19.5% is the change from 600 to 483
Calculation steps:
[( 483 - 600 ) ÷ 600] x 100 = -19.5%
Formula
Percentage change = [(483 - 600) / 600] x 100
Subtract the new number by the original number
483 - 600 = -117
-117 ÷ 600 = -0.195
-0.195 x 100 = -19.5%