-98.61% is the change from 937 to 13
Calculation steps:
[( 13 - 937 ) ÷ 937] x 100 = -98.61%
Formula
Percentage change = [(13 - 937) / 937] x 100
Subtract the new number by the original number
13 - 937 = -924
-924 ÷ 937 = -0.9861259338313767
-0.9861259338313767 x 100 = -98.61%