-84.8% is the change from 658 to 100
Calculation steps:
[( 100 - 658 ) ÷ 658] x 100 = -84.8%
Formula
Percentage change = [(100 - 658) / 658] x 100
Subtract the new number by the original number
100 - 658 = -558
-558 ÷ 658 = -0.8480243161094225
-0.8480243161094225 x 100 = -84.8%