From Fallen London Wiki (Staging)

I... don't know why I wrote 340. I must've thought you only got 7 Charts instead of 14, minus 10 Stuivers for the Tempestuous Tale you're "researching". 27 actions is a guesstimate based on my experience, getting about 22 research/action, thus 550/22 = 25 actions +2 for intro/outro.