-71.39% is the change from 678 to 194
Calculation steps:
[( 194 - 678 ) ÷ 678] x 100 = -71.39%
Formula
Percentage change = [(194 - 678) / 678] x 100
Subtract the new number by the original number
194 - 678 = -484
-484 ÷ 678 = -0.7138643067846607
-0.7138643067846607 x 100 = -71.39%