Given,
The rate of discount is 24%.
The sale price is $665.
The formula of marked price is,
Marked price (regular price)= sale price+discount
Consider,
The regular price is x.
Substituting the values then,
[tex]\begin{gathered} x=665+24\text{ percent of x} \\ x=665+\frac{24}{100}x \\ x-0.24x=665 \\ 0.76x=665 \\ x=875 \end{gathered}[/tex]Hence, the regular price of the suit is $875.