(RTTNews) - Daktronics, Inc. (DAKT) said its second quarter operating income decreased to $4.4 million from $6.7 million, last year, due to inflation in materials and freight costs and increased personnel spend compared to prior year. Net sales increased to $164.5 million from $127.4 million, prior year, as a result of strong demand and eased pandemic related site restrictions. Reece Kurtenbach, CEO said, "Market demand continued to return to pre-pandemic levels and our order bookings grew through the first half of the year.