Evan Engineering Group receives royalties on a technical manual written by two of its engineers and sold to a publishing company. Royalties are 10% of net sales, receivable on October 1 for sales in January through June and on April 1 for sales in July through December of the prior year. Sales of the manual began in July 2015, and Evan accrued royalty revenue on $30,010 of sales at December 31, 2015.

Evan received royalties of $2,613 on April 1, 2016. On October 1, 2016 Evan received royalties of $4,631. The 2nd half of 2016 sales were estimated to be $43,220

What is Evan's 2016 royalty revenue?

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