Finland-based pizza restaurant chain Kotipizza has reported total sales of €9.1m in May 2018, a 12.9% increase compared to €8.1m during the same period in the previous year.

The restaurant company also reported a 7.5% increase in same-store sales, compared to the same period in the previous year. The growth is reported based on sales figures from 247 restaurants.

Income sales of its brick-and-mortar restaurants increased by 13.4%, whereas shop-in-shop location sales increased by 9.9%.

The company also posted a 25.6% increase in online store sales to €824,000, which includes the figures from 77 restaurants that offer home delivery.

Cumulative chain sales of the pizza chain since the beginning of the financial year, from 1 February to 31 May, have increased by 15.8% to €37.4m.

Kotipizza currently operates 273 locations including 175 brick-and-mortar locations, 98 shop-in-shop, as well as the 77 restaurants offering home delivery.

Established in 1987, Kotipizza is owned and operated by Kotipizza Group, which also owns Chalupa and Social Burger Joint restaurant chains.

Established in 2015, Chalupa is a Mexican-style restaurant chain whereas Social Burger Joint, which was acquired in November 2017, operates the restaurants and the Social Food truck.

In addition, total sales of the Chalupa restaurant chain increased by 23.2% in May, while restaurant sales decreased by 2.3%, adjusted EBIDTA decreased by 30.9% and restaurant contribution decreased by 8.2%.

The group also reported a 34.8% increase in the total sales of the Social Burger Joint restaurant, compared to its May sales of the previous year.