Please help figure gain for form 8959 and schedule C.

13. This sale below was reported to IRS only with proceeds price, no basis was determined by the broker. On May 1, 2016, Jean and James sold 25,600 shares of WMT common stock for $1,177,600. This was to help them pay some of the overwhelming medical bills. They paid a total of $2,460 in broker fees in the disposition of the stock. Jean originally purchased the stock on March 20, 1980. She bought 100 shares of WMT's common stock for $3,175. Stock splits have been very profitable