What amount to put for parents income from P60

Please advise. P60 has an amount in PAY box and a tax deducted amount in next box. Do I add these two figures together then submit that amount ? Or just put the PAY amount? Also do I deduct pension contributions for year from amount or is there a separate box for pension contributions? Gross on last March pay slip is less than the added P60 amount plus tax deducted figures by about 1,000 please advise. Thank you