-88.79% is the change from 678 to 76
Calculation steps:
[( 76 - 678 ) ÷ 678] x 100 = -88.79%
Formula
Percentage change = [(76 - 678) / 678] x 100
Subtract the new number by the original number
76 - 678 = -602
-602 ÷ 678 = -0.887905604719764
-0.887905604719764 x 100 = -88.79%