Why would the how much you have contributed go down if the game has decreased in price?

Bundled games, free games, they contribute very little (if anything) to your CV...I'm too lazy to clicky you to the FAQ but someone else will

Because Overcast is $1.

'Cause.

Can't find the topic from CG, but there is good reason why games use the current price. An example is the occasional bug, where an item might show the series collection value, rather than the proper release value. Rather than allow people to pull junk abusing those errors, the game value is only ever the current value.

so you mean if i donate the Apple ][e i bought a while ago to a school i can't use it as a $1500 write-off for taxes! how stupid!

Because Steamgifts doesn't keep the price history of each game, only the current price. And since the game was $0.19 when you gave it away, you should consider yourself lucky to actually have that much CV.