Using the same information for an MTS environment as the previous problem $($shown in the grid below$),$ what is the discrete ATP in period $3$ Note that ATP is discrete $($not cumulative$)$ and the MPS receipt scheduled in period was carried over from a previous plan. On hand: $15$ Planning time fence : week $7$ Lot size: $40$ Safety stock : $8$ Demand time fence: week $2$ Period $1$ Forecast $2020$ Actual orders $18$ PAB $15371532242010678202020201085$ ATP $($ discrete$)22$ MPS Receipts $40404040$