用Canada revenue Agency上的payroll online calculation，帮你算了下，每2周收入如下
Gross salary income for the pay period 800.00
Total EI insurable earnings for the pay period 800.00
Taxable salary income 800.00
Cash income for the pay period 800.00
Federal tax deductions 57.47
Provincial tax deductions 27.48
Requested additional tax deduction 0.00
Total tax on salary income 84.95
CPP deductions 32.94
EI deductions 14.40
Amounts deducted at source 0.00
Total deductions on salary income 132.29
Net amount 667.71
800-32.94（cpp）-14.40（EI）-132.29（tax）=667.71