I just bought a 3 days ip boosts yesterday. and when i finish a game in the morning, i get massage told me my Ip boosts have been finished. Then i played the next game, we won.but i just got the half gold of the another.
Well, two possibilities: The first game you got your "first win of the day" bonus which added 150ip, the second game was less because it didn't have that bonus.
Or, the first game was really long and the second was pretty quick. You only get 80-90 ip for wins in the 20-25 min area so it looks like you got double that.
Honestly, to get to 374ip for a win I think you'd need the 150 first win bonus. You probably saw getting the first win and thought it was talking about your boost? 174 is reasonable for a fast game with the bonus - it's about the maximum you could get for a game without having the bonus so unless you had an 80 minute game you probably got your bonus properly.
Take a look after your next game and see if you got bonus ip. Or go to detailed match history to see how long the game was, if it was pretty quick you're okay.
Also, pretty sure per win ip boosts give you the max ip for each win (I.e. a 20 min win will ramp up the bonus ip to an 80 min game worth of ip) whereas the per day boosts just outright double your gains.
