calculate the CPP Basic exemption for weekly, biweekly and semi monthly

please help

Weekly Cash Tax Allowance Ben CPP Emp Emp Ded Cont Salary 1.225.00 1,500.00 3.80 10.00 425.00 $ $ 40.00 $ 75.00 $ 25.00 $ - $ 15.00 Cash 750.00 1,180.00 $ 11.00 25.00 Biweekly Tax CPP Emp Emp Ded Cont Salary Allowance Ben 2,572.50 3,150.00 892.50 1,575.00 2,478.00 $ 40.00 3.80 $75.00 10.00 $ 25.00 $ - 11.00 $ 15.00 25.00 8. Semi Monthly Cash Tax CPP Emp Emp Ded Cont Salary Allowance Ben a) 5,788.13 $ 80.00 5.70