-8.38% is the change from 704 to 645
Calculation steps:
[( 645 - 704 ) ÷ 704] x 100 = -8.38%
Formula
Percentage change = [(645 - 704) / 704] x 100
Subtract the new number by the original number
645 - 704 = -59
-59 ÷ 704 = -0.08380681818181818
-0.08380681818181818 x 100 = -8.38%