Actual Cost + Schedule % Complete Vs Planned Value in P6

Dear All,

I have 2 Questions:

Q1- I have loaded BOQ cost in P6. I loaded it by assigning a "COST" resource. I made budgeted units of "COST" resource  zero in all activities and loaded cost directy in budgted cost option of the resource in all activities. Problem is that when I update my program, its is not showing the actual cost. Remaining cost, Planned cost are available but actual cost is zero. What can be the reason?? 

See figure below.

Figure 1:

Q2- I have prepared progress S-Curve from Cost S-Curve. Cost curve I prepared by copying cost resource assignment data from p6 and pated & graphed in excel. As on 31 december-2014, progress curve (derived from cost)  shows planned % complete as 14.2% (In figure below Cum Budgeed Cost in dec/Total Budgted cost in fig above = 14.2%).

Figure 2:

But when I updated program on the same date, which is 31 december 2014, schedule % complerte column is giving me 13.4% planned progress (it is also clear from the figure above Planned Value/Budgted total cost = 13.4%). Why is this difference. Schedule % complete is not based on cost? If it is based on cost then it should be same S-Curve generated based on cost.. Please if someone can help. I am in urgency & trouble....