Please Explain every step and shown calculations please it would really help!

The following information pertains to the physical Inventory of Electronics Unlimited taken at December 31: Per Unit Product Units Audio equipment: on Hand Cost NRV Wireless audio receivers 332 Touchscreen MP3 players $199 $188 Audio mixers 247 203 223 Audio stands 313 193 177 Video equipment: 191 85 103 Televisions 467 5GB video cards 253 298 Satellite video recorders 278 171 199 Car equipment: 613 618 GPS navigators 172 171 145 Double-DIN Car Deck with iPod/1Phone Control and Aux Input 157 213 198 183 Required: 1. Calculate the LCNRV for the: a. Inventory by major group b. Inventory, applied separately to each product Per Unit Inventory Items Units on Hand Cost NRV LCNRV applied to: b. a. Separately Major Group to Each Product Total cost Total NRV $ Audio equipment: Wireless audio receivers Touchscreen MP3 players Audio mixers Audio stands Subtotal 332 $ 247 313 191 199 203 193 85 188 223 177 103 I Audio equipment Wireless audio receivers Touchscreen MP3 players Audio mixers Audio stands Subtotal 332 $ 247 313 191 199 $ 203 193 85 188 223 177 103 Video equipment Televisions 5GB video cards Satellite video recorders Subtotal 467 278 253 171 613 298 183 199 618 172 171 145 Car equipment: GPS navigators Double-DIN Car Deck with iPod/Phone Control & Aux Input Subtotal 157 213 198 Totals 2. Prepare the appropriate entry, if any, for 1(a) and 1(b). View transaction list Journal entry worksheet 1 2 > Record the entry to write inventory down to LCNRV (major group). Note: Enter debits before credits Debit General Journal Date Credit Dec 31 View general Journal Clear entry Record entry