Harmony just negotiated a new deal with Purple Parrot Records. She will be paid a monthly base salary of $3900 plus a commission of $5 per CD sold. Melody is trying to decide if this is a better deal than her monthly base salary of $4250 plus a commission of $2 per CD sold/

Who do you think has a better deal Melody or Harmony?
Explain.
Harmony because the amount of money she gets from each CD is more than Melody

You'd need to estimate the number of CDs she sells each month.