-84.51% is the change from 678 to 105
Calculation steps:
[( 105 - 678 ) ÷ 678] x 100 = -84.51%
Formula
Percentage change = [(105 - 678) / 678] x 100
Subtract the new number by the original number
105 - 678 = -573
-573 ÷ 678 = -0.8451327433628318
-0.8451327433628318 x 100 = -84.51%