-90.91% is the change from 638 to 58
Calculation steps:
[( 58 - 638 ) ÷ 638] x 100 = -90.91%
Formula
Percentage change = [(58 - 638) / 638] x 100
Subtract the new number by the original number
58 - 638 = -580
-580 ÷ 638 = -0.9090909090909091
-0.9090909090909091 x 100 = -90.91%