
How to Calculate and Adjust Initial Markup for Seasonal Sales
Setting the right initial markup (IMU) can make or break a retailer’s seasonal profitability. Many independent retailers still rely on simple “keystone” pricing rules, but seasonal dynamics demand a more strategic approach. This guide breaks down how to calculate your IMU step-by-step, factor in operating costs, markdowns, and net profit, and make smart adjustments to protect your margins during peak and clearance periods. Learn how to plan for seasonal fluctuations, apply progressive markdown strategies, and align your IMU with shifting retail calendars to maintain strong profits all year round.












