Suppose you are the area sales manager for the Kolkata region at an FMCG firm. Durga Puja is approaching, and you know that your sales numbers will also benefit from the festive fervour. However, as happens every year, once the festive mood is over, the numbers will likely witness a sharp downfall. In order to cushion the numbers from the fall, you plan to launch a sales promotional campaign in the weeks following Durga Puja.

You plan to provide a $15\%$ discount on the MRP to customers and that of $20\%$ to your distributors. As per your projections, the $15\%$ rise in sales that you expect to witness in the weeks leading to Durga Puja can be cushioned to drop to $8\%$ instead of $2\%$ without the campaign.

You need to propose this campaign to the marketing head of your region, Mr$.$ Sinha, and you have written a proposal for the same. Based on the given information, draft a letter of transmittal for your report.