-19.88% is the change from 679 to 544
Calculation steps:
[( 544 - 679 ) ÷ 679] x 100 = -19.88%
Formula
Percentage change = [(544 - 679) / 679] x 100
Subtract the new number by the original number
544 - 679 = -135
-135 ÷ 679 = -0.19882179675994108
-0.19882179675994108 x 100 = -19.88%