-92.83% is the change from 642 to 46
Calculation steps:
[( 46 - 642 ) ÷ 642] x 100 = -92.83%
Formula
Percentage change = [(46 - 642) / 642] x 100
Subtract the new number by the original number
46 - 642 = -596
-596 ÷ 642 = -0.9283489096573209
-0.9283489096573209 x 100 = -92.83%