Ok those fees are slightly wrong Sponsorship fee $75 Correct
Principal applicant $475 Correct
1x A family Member of principal Applicant 22yo spouse $550 (Incorrect you need the right of landing fee which should be $490)
Total should be $1040
Principal applicant is the person COMING to Canada
Sponsor is the person who resides in Canada or has Canadian Citizenship
Ok needed to add this
You are the principal applicant
She is the sponsor
You are applying to for the right to become a resident of Canada and she is sponsoring (Vouching for you and agreeing to support you when you become a Canadian PR)