Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: Energy firm Npower is to cut up to 2,500 jobs, more than a fifth of its UK workforce, with an announcement to staff expected this week.

Npower to cut 2,500 jobs - a fifth of its UK workforce