I had 17 T.O sentry bots, with a scrap value of 140.000 to 1.5 million I scrapped them and got 425,000 I got a C in multi phase calculus so I could be incorrect, but I doubt it is because I did not carry a -2, so Don't stack if you want to use the artifacts a s abank cause like todays banks you will get shall we say ripped a new one, wallet that is.

Although I never had a TO sentry bot, it is likely that you only saw the max scrap value. your credit pay could be anywhere between the min and max values.

When you stack artifacts, the scrap value that is shown is based on the total number that you have, not based on the per unit. Thus the value you received was within the expected amount. The 1.5 million would only be received if every one of them ended up scrapped for the maximum value.

The scrap value for a single T.O. Sentry Bot artifact is 20,000-80,000. As Halestorm said, the amount you saw was the total amount for the entire stack of 17 artifacts. Having said that, there does appear to be a problem somewhere in the formula since 17 of these should have a scrap value of 340,000-1,360,000. The amount that you received is within that range and therefore perfectly normal, but Dan might need to take a look at the code to make sure it is calculating the value of an artifact stack correctly.