-7.74% is the change from 698 to 644
Calculation steps:
[( 644 - 698 ) ÷ 698] x 100 = -7.74%
Formula
Percentage change = [(644 - 698) / 698] x 100
Subtract the new number by the original number
644 - 698 = -54
-54 ÷ 698 = -0.07736389684813753
-0.07736389684813753 x 100 = -7.74%