When the shop promotion period ends, the sales bonuses provided by the promotion also end automatically. For this reason, your shop's sales may return to lower levels compared to the period when the promotion was active.
This situation is part of normal game mechanics and does not mean there is any error or problem.
Promotion Bonuses
Promotions applied to shop provide the following sales bonuses:
Brochure Advertising: %10 sales bonus
Newspaper Advertising: %25 sales bonus
Advertisements that affect all your shops are:
Radio Advertising: %25 sales bonus
TV Advertising: %50 sales bonus
Why Are Sales Decreasing?
As long as the promotion is active, your shops earn additional sales bonuses at the specified rates. When the promotion period ends, these bonuses are removed and sales return to normal levels before advertising was applied.
For this reason, experiencing a decrease in sales after the promotion is completely normal.
Important: If you want to keep your sales at high levels, you can regularly renew your shop and general advertising promotions. Active promotions will continue to boost your shops' sales performance.