Revenue Analysis: Wait... what?

"Thus, the overall profit for this action is 20.03 to 22.84 E. If the player holds onto their Storm-Threnodies to sell them at the Rat Market (available three weeks out of every twelve), overall profit increases to 25.87 E to 29.62 E, at the cost of an additional action."

Sure, got that. At max 25E * .904 + 2.5 R * .096 = 22.84 Echoes expected, and similar for minimum.

"Accordingly, players with access to the Nadir and Rat Market have an overall EPA expectation of 2.79 to 3.20; players who do not, who must count obtaining the Insight as a full separate action and sell the Storm-Threnody for its normal price, have an overall EPA of 2.23 to 2.54."

Using the latter (selling at the Bazaar and full action for Sudden Insight), how the flip do you go from an expected return of 22.84 Echoes to an EPA of 2.23 to 2.54?

That implies action counts of 10.24 actions (i.e. 22.84 E / 10.24 A = 2.23 EPA) to 8.99 actions (22.84/9.99=2.54 EPA).

Except, where are the ~10 actions coming from? For action costs, I'm getting a grand total of 2 actions: playing the Overgoat card + an action to source a second chance.

Now, I'm quite sure that whoever wrote that analysis is very capable of dividing 20.03 to 22.84 E by 2 actions to get an EPA range of ~10-11.4, or selling at the Rat Market and using the Cave for 2.25 actions (i.e. 1 action for Overgoat card, 1 for selling at Rat Market, 1/4 action to gain second chance), so dividing 25.87 E to 29.62 E by 2.25 and getting an EPA range of ~11.5 to 13.6.

So obviously I'm missing something. How do you go from 2 or 2.25 actions to the ~10 needed for the Revenue Analysis' shown EPA?