The correct answer is that the vendor will estimate the second package at 45,000andtentativelyestimatethethirdat40,000. When a fixed-price work package is arranged, it’s expected that the vendor will change the price of future
work packages if additional information is found to better help them estimate. The other responses are incorrect because vendors are not required to keep estimates the same if new information or risks are discovered; nor are they expected
or required to renegotiate. The vendor can re-estimate the work packages, and the company can always choose to decline to work with them again. For work packages with varying prices, the vendor should never charge an average amount.