-99.56% is the change from 678 to 3
Calculation steps:
[( 3 - 678 ) ÷ 678] x 100 = -99.56%
Formula
Percentage change = [(3 - 678) / 678] x 100
Subtract the new number by the original number
3 - 678 = -675
-675 ÷ 678 = -0.995575221238938
-0.995575221238938 x 100 = -99.56%