-8.11% is the change from 703 to 646
Calculation steps:
[( 646 - 703 ) ÷ 703] x 100 = -8.11%
Formula
Percentage change = [(646 - 703) / 703] x 100
Subtract the new number by the original number
646 - 703 = -57
-57 ÷ 703 = -0.08108108108108109
-0.08108108108108109 x 100 = -8.11%