-71.72% is the change from 686 to 194
Calculation steps:
[( 194 - 686 ) ÷ 686] x 100 = -71.72%
Formula
Percentage change = [(194 - 686) / 686] x 100
Subtract the new number by the original number
194 - 686 = -492
-492 ÷ 686 = -0.717201166180758
-0.717201166180758 x 100 = -71.72%