Data for Olaf Company and DeVito Company are presented in E5.9.

Data from Exercise E5.9

The following transactions occurred in April and May. Both companies use a perpetual inventory system.
Apr. 5 Olaf Company purchased merchandise from DeVito Company for $12,000, terms 2/10, n/30, FOB shipping point. DeVito had paid $8,500 for the merchandise.

6 The correct company paid freight costs of $300. 

8 Olaf Company returned damaged merchandise to DeVito Company and was given a purchase allowance of $1,800. DeVito determined the merchandise could not be repaired and sent it to the recyclers. The merchandise had cost DeVito $1,275. 

May 4 Olaf paid the amount due to DeVito Company in full.

Instructions
a. Prepare the journal entries to record these transactions on the books of Olaf Company using a periodic inventory system instead of a perpetual system.
b. Prepare the journal entries to record these transactions on the books of DeVito Company using a periodic inventory system instead of a perpetual system.