-94.24% is the change from 642 to 37
Calculation steps:
[( 37 - 642 ) ÷ 642] x 100 = -94.24%
Formula
Percentage change = [(37 - 642) / 642] x 100
Subtract the new number by the original number
37 - 642 = -605
-605 ÷ 642 = -0.942367601246106
-0.942367601246106 x 100 = -94.24%