We need a custom room price calculation module for a hotel portal website running Drupal 7. The guests visiting the website should be able to calculate room prices based on data which should be stored in the drupal mysql databse and be editable in the Drupal Backend.
There are around ten room categories, as well as different dates, where a special discount is given.
Our drupal installation runs multi-domain with drupals domain access module. The module should be captable of managing different prices for each different domain/website managed under the drupal installation.