Summing Merged Columns

Hello,

I have a 3.16MB Excel File that I use to track our Indirect Procurement Savings from a report that I download from my employer's project database. The report is in excel format and I copy and paste the data into my tracking sheet which then populates 15 individual sheets (categories), and 1 summary sheet. There has been new data that has been added to the report that I now need to incorporate into my tacking sheet and I am having difficulties figuring out the correct formula.

There are 38 columns in total, but the three columns below contain the data that I am having problems with.

One column denotes the project status (Merged Column P&Q):
- Active
- Planned
- On-Hold
- Completed

One column denotes the savings amount for each project (Column Z)

One column denotes the spend category (Merged Column AS&AT):
- Indirect Material & Services
- Indirect-CapEx
- Indirect-Cost Avoidance
- Indirect-Cost Savings

(All of this data is contain in A283:AT283 to A783:AT783)

What I need help with is how to I write the following four formulas?:
- Completed (P283:Q783), total sum of the savings amount (Z283:Z783), Indirect Material & Services (AS283:AT783)
- Completed (P283:Q783), total sum of the savings amount (Z283:Z783), Indirect-CapEx (AS283:AT783)
- Completed (P283:Q783), total sum of the savings amount (Z283:Z783), Indirect-Cost Avoidance (AS283:AT783)
- Completed (P283:Q783), total sum of the savings amount (Z283:Z783), Indirect-Cost Savings (AS283:AT783)

I would appreciate any guidance that can be provided.

Thank you in advance,

Brian