Assume John is willing to pay (WTP) up to $7.8 for an apple, and Sarai is willing to sell (WTA or "willingness to accept") an apple for as low as $0.4.
The price in the market for an apple is $3.
What is consumer surplus?
Note: enter answer with only numerical values and round up to the nearest tenth. For example, if you think the answer is "$101.58" then enter the answer "101.6" in the space below.