-8.78% is the change from 706 to 644
Calculation steps:
[( 644 - 706 ) ÷ 706] x 100 = -8.78%
Formula
Percentage change = [(644 - 706) / 706] x 100
Subtract the new number by the original number
644 - 706 = -62
-62 ÷ 706 = -0.08781869688385269
-0.08781869688385269 x 100 = -8.78%