-24.92% is the change from 642 to 482
Calculation steps:
[( 482 - 642 ) ÷ 642] x 100 = -24.92%
Formula
Percentage change = [(482 - 642) / 642] x 100
Subtract the new number by the original number
482 - 642 = -160
-160 ÷ 642 = -0.24922118380062305
-0.24922118380062305 x 100 = -24.92%