Why does it gives 4 mps when it has t give 2 mps

Question

i made a clicker game, but the mps (money per second) totally glitched out, if you buy the autoclicker or speedclicker twice, it will: double the money you get per second and halve the time of getting the money so:
autoclickers: 2
should get: 2money per second
gets: 4 money per second
please help me out of this shit
https://code.sololearn.com/WuU3yGBHAGLO/?ref=app

Answer 1

Because in your code you have written "mps += 2;" for every autocklicker you buy. So if you buy 2 you have 4 mps.

Hope that was the missing part.