Help me with it plz. Me big dumb.

Which formula do I use to find the amount I will have in 15 years for this problem--Invest $350 at the end of each month for 15 years into an account paying7.8% compounded monthly.

Which formula do I use to find the amount I will have in 15 years for this problem--Invest $350 at the end of each month for 15 years into an account paying7.8% compounded monthly.