Need help creating a formula for the following. pls help. TY$!$

$1.$ Calculate Deduction amount

$($Deduction amount $=$ HCSP $+$ Retirement $+401($k$)+$ Health Insurance $+$ Dental Insurance $+$ Parking$).$

Remember that employees might not have all of those deduction types.

$2.$ Calculate Withholding amount.

$($Withholding amount $=$ State WH $+$ Federal WH $+$ Social Security Tax $+$ Medicare tax$)$