subsequent costs?

PMP Fighter's picture

Following project data are given to you
a) Target price = $90000
b) Ceiling price = $100000
c) Customer's share of cost overruns = 70%
d) Target cost = $80000

You are requested to and out point at which the seller will assume all subsequent costs:

A $ 104286
B $ 80000
C $ 14286
D $ 94280

used this formula PTA= ( CP - TP ) / Y%  + TC

Thaen i get this number 94285 and is near to (D) but im not sure .