hubby told me, the first part of imm0008 is all about the Lc1, that's why it must be "economic" and "LCP" then the second part is about the principal applicant (spouse) and third is for Dependents (children)
Better check your receipts, but do not be confused that RPRF is different from the 550 each for you and spouse and 150 for each dependent children upon submission of application.
http://www.cic.gc.ca/english/information/fees/fees.asp#rprf
4. Right of Permanent Residence Fee (RPRF)
Getting your permanent resident status – Fees
Application for $CAN
Getting your permanent resident status 490
Principal applicants (with some exceptions) and spouses and common-law partners coming with them to Canada must pay this fee. Applicants must pay this fee before CIC issues the permanent resident visa or before the applicant becomes a permanent resident in Canada.
These people do not have to pay this fee:
dependent children of a principal applicant or sponsor, a child to be adopted, or an orphaned brother, sister, niece, nephew or grandchild; and
protected persons, including Convention refugees.