-91.75% is the change from 679 to 56
Calculation steps:
[( 56 - 679 ) ÷ 679] x 100 = -91.75%
Formula
Percentage change = [(56 - 679) / 679] x 100
Subtract the new number by the original number
56 - 679 = -623
-623 ÷ 679 = -0.9175257731958762
-0.9175257731958762 x 100 = -91.75%