Alex was planning to set up a business where he would purchase painting for $32 per unit and sell them for $198 per unit. He wanted to conduct a break-even analysis and identified the following costs for running his business: $2,960 per month for store leasing, $980 per month for website hosting fee, $10,600 per month for staff salary, $5,010 per month for advertising costs, and $17 per unit for labour charges to pack the paintings. If Alex wants to make a profit of $4,470 in a month, how many paintings would he have to sell? Round properly.