HOW MUCH can i pay for the SWITCH? I want tosav to buy one but my allowence has been revoked?

Hello mymom she recently said iw as play too much mincraft and fortnight and she took away my allowances untl my grades are better (i'm homeschool) and i wanted to buy a switch but i'm can't save up anymore now and i wanted to buy some more things on fortnight… HOW MUCH CAN I PAY i want a switch but chistmas is eight months away