could you please explain by steps

Breakout on Capacity Requirements Planning Op.#1 WC 200 0.10 hr/unit Op.#2 WC 300 0.15 hr/unit WC 100 0.05 hr/unit E WC 300 0.15 hr/unit WC 200 0.20 hr/unit F Purchased Week -5 -4 -3 -2 -1 0 Figure 8.10 Resoure Load Profile for Example 8.3 Item B is similar to A but requires 2 part C's per unit. Master Production Schedule 6 End Item A B 1 100 60 2 75 Period 3 4 45 50 90 60 5 130 140 Find the capacity needed in Werkcenter 200 each period (including recent past periods)