-8.24% is the change from 704 to 646
Calculation steps:
[( 646 - 704 ) ÷ 704] x 100 = -8.24%
Formula
Percentage change = [(646 - 704) / 704] x 100
Subtract the new number by the original number
646 - 704 = -58
-58 ÷ 704 = -0.08238636363636363
-0.08238636363636363 x 100 = -8.24%