Gray Enterprises Has Two Support Departments (S1 and S2)and Two $\quad$

Gray Enterprises has two support departments (S1 and S2)and two producing departments (A and B).
The distribution of services by the support departments is as follows:
$\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$$\text { ServicesProvided to }$
$\begin{array}{ccccc}\text { ServicesProvided from } & \underline{\text { S1 }} & \underline{\mathbf{S 2}} & \underline{\mathbf{A}} & \underline{\mathbf{B}} \\\text { S } 1 & - & 8 \% & 74 \% & 18 \% \\\text { S } 2 & 21 \% & - & 47 \% & 32 \%\end{array}$ Total department costs for the support and producing departments are as follows:
$$\begin{array} { l l } \mathbf { S } 1 & 558,000 \\\text { S2 } & 124,000 \\\text { A } & 712,000 \\\text { B } & 568,000\end{array}$$ Find the amount of total costs for A and B using the reciprocal method.