During 2019, Mr. Robert Sparks had the following amounts of income and deductions on his tax return:

Net employment income $ 85,000

Income (Loss) from business 16,000

Interest income 6,000

Taxable capital gains 7,500

Allowable capital losses (10,500)

Child care cost ( 3,000)

Support Payments Paid (15,500)

Robert is a member of a money purchase Registered Pension Plan (RPP) in which he had contributed $1,000 and his employer has contributed $1,500.

Required:

Calculate the maximum deductible contribution Robert Sparks can make to his RRSP for the 2020 tax year. Show your work including how you calculated Roberts earned income.