PR CARD RENEWAL (RESIDENCY REQUIREMENT)

I WOULD LIKE TO KNOW THAT HOW THE NO OF DAYS (730) WHICH ONE NEED TO BE PHYSICALLY PRESENT IN CANADA WITHIN 5 YEARS FOR FIRST RENEWAL OF PR CARD, SUPPOSED TO BE CALCULATED?

1. START FROM THE DATE OF LANDING AND ENDS AT EXACTLY AFTER FIVE YEARS OR UPTO THE EXPIRY DATE WHICH IS MENTIONED OF PR CARD OR IT STARTS BACKWARD FROM THE EXPIRY DATE OF PR UPTO THE PREVIOUS 5 YEARS TIME.

A PERSON SHOULD BE PRRESENT IN THE COUNTRY FOR 730 DAYS IN 5 YEARS TIME, FROM THE DATE OF LANDING UPTO EXACTLY FIVE YEARS OR UPTO THE EXPIRY DATE OF PR CARD WHICH NORMALLY 1 OR TWO MONTHS ON THE TOP OF 5 YEARS.

2. IF SOMEBODY LIVES IN THE COUNTRY FOR 630 days WITHIN 5 YEARS TIME AND WILL STAY 100 days AFTER THE EXPIRY OF PR CARD AND THEN APPLY FOR first RENEWAL OF PR CARD, This is legal? And the person will get the PR CARD if he lived 730 days in 5 years and 6 months time period?

3. ONE WILL LOSE THE PERMANENT RESISDENCY IF THERE WILL BE SHORTAGE OF 100 DAYS IN 730 DAYS IN 5 YEARS TIME?

Earliest reply would be highly appreciated.

Thanks for your kind co-operation.

SAMI