pls help me solve this problem with detail explaination

LLB Industries borrowed $400,000 from Trust Bank by issuing a two-year, 12% note, with interest payable quarterly. LLB entered into a two-year interest rate swap agreement on January 1, 2021, and designated the swap as a fair value hedge. Its intent was to hedge the risk that general interest rates will decline, causing the fair value of its debt to increase. The agreement called for the company to receive payment based on a 8% fixed interest rate on a notional amount of $400,000 and to pay interest based on a floating interest rate. Floating (LIBOR) settlement rates were 8% at January 1, 6% at March 31, and 4% at June 30, 2021. The fair values of the swap are quotes obtained from a derivatives dealer. Those quotes and the fair values of the note are as indicated below. The additional rise in the fair value of the note (higher than that of the swap) on June 30 was due to investors' perceptions that the creditworthiness of LLB was improving. Fair value of interest rate swap Fair value of note payable January 1 0 $ 400,000 March 31 $ 8,472 $ 408,472 June 30 $ 15,394 $ 420,000 Required: 1. Calculate the net cash settlement at June 30, 2021. 2. Prepare the journal entries on June 30, 2021, to record the interest and necessary adjustments for changes in fair value