$2.(25$ Points$)$ Using discrete available$-$to$-$promise $($ATP$)$ logic, calculate the master production schedule $($MPS$)$ for the following conditions.

On hand Period

$12345$

Forecast $2018251512$

Orders $64803$

Projected available balance $15$

Available$-$to$-$promise $($discrete$)$

Master production schedule

Lot size $=25,$ Safety stock $=10$