# Project Management Central

PTA= target Cost (( ceiling price  target price)/Buyers share ratio) ?
 Network:4
Hello Gentlemen!

At PMP question?
the information were given like:
target cost
ceiling price
Fixed fee
buyer's share ratio as ( Benefit/cost sharing:) = 80% / 20%

is the target price = target cost + Fixed fee ???
Is the buyer's share = 80% = 0.8???
what is the meaning of Buyer's share ratio?
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 Network:78
The Target Price for the work consists of the Target Cost plus the seller’s Target Profit (or ‘fixed fee’).

The Share Ratio compares the actual cost at completion with the target price and divides the benefit of underruns and the consequences of the allowed overruns between the buyer and seller.

A typical set of share ratios are 80% buyer – 20% seller for overruns and 50% – 50% for underruns. This means the seller(contractor) contributes 20% of any cost overruns (usually from its planned profit) up to the ceiling but receives 50% of any cost savings (underruns).
 Network:4
Hello Rohan,

Thanks a lot for your contribution.
I appreciate it.
Regards,
Mansour
 Network:35
Hello Rohan,

I still have one question as the ( Benefit/cost sharing:) =80% / 20% is given in data information
and the equation is divided to the ratio ( why I have to divided to 80% ? why not 80%/20% which equal 40% ? why not divided to 40% ???
this is a math ?
Mansour