SCS – Sitting comfortably ?

Entered SCS at 158 the other day.

Stock fell 30% due to recent RNS. This said:

Since the Half Year end in January 2015, trading for the 10 week period up to Saturday 4 April was in line with expectations and the interim announcement, with like for like order intake up 7.6%. However, like for like order intake in the 4 trading weeks to 2 May, commencing Easter Monday, was 15.9% below last year.

If you work this out it means (roughly) that over the entire 14 week period sales were flat year on year. Caused by a bad 4 weeks trading.

So the company is worth 30% less as a result ? Due to a bad month ?