The hourly rate and the total amount of the payment for the performed temporary and occasional work for pupils and students on the referral represent a gross amount, which includes contributions from the pupil or student for pension and disability insurance (15.50%), on the basis of which the adequate pension qualifying period is acknowledged to the pupil and student. Upon the agreed amount of 100 EUR on the referral, the pupil or student receives 84.5 EUR; further 15.5 EUR are contributions of the pupil or student deducted for the pension and disability insurance by the intermediary of the temporary and occasional work for pupils and students.