A partial adjusted trial balance of Novak Company at January 31, 2020, shows the following. NOVAK COMPANY ADJUSTED TRIAL BALANCE JANUARY 31, 2020 Debit Credit Supplies $1,040 Prepaid Insurance 4,440 Salaries and Wages Payable $1,140 Unearned Service Revenue 1,090 Supplies Expense 950 Insurance Expense 740 Salaries and Wages Expense 2,140 Service Revenue 2,340 Answer the following questions, assuming the year begins January 1. If the amount in Supplies Expense is the January 31 adjusting entry, and $850 of supplies was purchased in January, what was the balance in Supplies on January 1?