Data interpretation — త్వరిత క్విజ్

A retail chain recorded the revenue and units sold of its three stores for the first three months of a year. January: Store A Rs 4,20,000 (140 units); Store B Rs 3,15,000 (105 units); Store C Rs 2,80,000 (80 units) February: Store A Rs 5,60,000 (160 units); Store B Rs 4,34,000 (140 units); Store C Rs 3,60,000 (120 units) March: Store A Rs 6,30,000 (180 units); Store B Rs 4,90,000 (175 units); Store C Rs 4,20,000 (140 units) What is the percentage increase in the revenue per unit for Store A from January to February?