Gumbo Inc. is a manufacturer of chewing gum that uses a standard cost system. Standard product and cost information to produce 1000 Kg of chewing gum follows:

Quantity Kg $ Price / Kg

Gum base 800 0.25

Corn syrup 200 0.40

Sugar 200 0.10

Material records indicate for the Month of May:

Material Beginning Inventory Kg Purchases Kg Ending Inventory Kg

Gum base 10,000 162,000 @$0.24 15,000

Corn Syrup 12,000 30,000 @$0.42 4,000

Sugar 15,000 32,000 @$0.11 11,000

The actually finished production for May is 200,000 kg.

Required:

Determine the:

1. Materials price variance
2. Materials usage variance
3. Materials mix variance
4. Materials yield variance