Gxsport is a small business manufactures sportswear focusing on tracksuits. Gxsport perform very well in 2021 with yearly sales amounting to RM630,000, equivalent to 12,600 pieces sold. For the 1st quarter of 2022, the sales are predicted to increase by 7% as compared to 2021's sales due to the raised of awareness for a healthy lifestyle. The price of the tracksuit is RM50 per piece. The labour rate is RM7 per hour and each piece of tracksuit requires 0.4 hours to make. Manufacturing overheads are charges at RM1.50 per piece. The inventory is expected to have a balance of 500 pieces of tracksuits as at 1st January 2022 and increase by 10% as at 31st March 2022. Calculate the production budget (in unit) for the 1st quarter 2022 (1st January to 31st March 2022).