-28.13% is the change from 704 to 506
Calculation steps:
[( 506 - 704 ) ÷ 704] x 100 = -28.13%
Formula
Percentage change = [(506 - 704) / 704] x 100
Subtract the new number by the original number
506 - 704 = -198
-198 ÷ 704 = -0.28125
-0.28125 x 100 = -28.13%