The numbers are in after sports betting became legal in North Carolina last month. The North Carolina State Lottery Commission's first monthly sports wagering activity report compiled the activity as submitted by the eight licensed interactive sports wagering operators.Between the start of sports wagering in North Carolina at noon on March 11 through March 31, North Carolinians wagered $659,308,541 on sports events, including paid wagering revenue and promo wagering revenue. From those wagers, North Carolinians won $590,750,303.State law places an 18% tax on the gross wagering revenue generated by sports wagering activity. Gross wagering revenue is the total of amounts received from sports wagers minus the amounts paid as winnings before any deductions for expenses, fees, or taxes. In March, the gross wagering revenue was $66,496,213.The North Carolina Department of Revenue is responsible for collecting the tax proceeds from sports wagering revenue.