English to Serbian Marketing Advertising / Public Relations agreement on media agency

Jasno mi je značenje, ali mi treba jedna reč.

“Total Net Comparable Spend” shall mean the part of the Total Net Negotiable Spend of a certain calendar year that can be compared with the Units negotiated during 2011 as set out in Appendix 5 of the Principal Agreement;
“Total Net Negotiable Spend” shall mean the total spend for media to be negotiated by the Agency and Agency Affiliates during any calendar year after 2011;