clicker

[wise minnow]

I am making a clicker game and when someone buys a upgrade I don't know how to take away the certain amount of clicks. Please send a screenshot if you can

[night pelican]

Clicks-price=clicks

Example

Clicks = 50
Price = 40
Clicks-Price=Clicks
50-40=Clicks
Clicks=10

[wise minnow]

?