The expenses and income of an individual are given in table form to the right. Find the net monthly cash flow (it could be positive or negative). Assume salaries and wages are after taxes. When you need to convert between weeks and months, assume that 1 month = 4 weeks.
Income
Part-time job: $700/month
College fund from grandparents: $300/month
Scholarship: $6000/year (equivalent to $500/month)
Expenses
Rent: $550/month
Groceries: $40/week (equivalent to $160/month)
Tuition and fees: $3000 twice a year (equivalent to $500/month)
Incidentals: $110/week (equivalent to $440/month)
The net monthly cash flow is $___.