In reply to Green Porridge: When a part time job is advertised, the salary is quoted "pro-rata FTE" Therefore the salary you earn is the equivalent of the full time equivalent. The fact that you work part time is a separate issue. It can be a life style choice that you work part-time, or are oblidged to work part-time.
However, that's the rate that's relevant to the job you're doing now, not the one you're applying for