At Clarkson Corp., the assembly department's April static overhead budget shows total overhead costs of $$80,000.$ $$21,000$ of those costs are variable, and the rest are fixed. Direct labor hours is the activity base, and the static budget is based on $1,000$ hours.

Actual total overhead costs in April were $$75,400,$ of which $$19,600$ were variable. Actual labor hours were $978.$

On a flexible budget report, what is April's budget difference for total overhead cost? Enter a favorable difference as a positive number or an unfavorable difference as a negative number.