Mack Fuels produces a gasoline additive. The standard costs and input for a 500-liter batch of the additive are presented below.

Chemical

Standard

Input Quantity

in Liters

Standard

Cost

per Liter

Total Cost

Echol

200

$ .200

$ 40.00

Protex

100

.425

42.50

Benz

250

.150

37.50

CT-40

50

.300

15.00

Totals

600

$ 135.00

The quantities purchased and used during the current period are shown below. A total of 140 batches were made during the current period.

Chemical

Quantity

Purchased

(Liters)

Total

Purchase

Price

Quantity

Used

(Liters)

Echol

25,000

$ 5,365

26,600

Protex

13,000

6,240

12,880

Benz

40,000

5,840

37,800

CT-40

7,500

2,220

7,140

Totals

85,500

$ 19,665

84,420

Calculate:

a) Price Variance

b) Quantity Variance

c) Mix Variance

d) Yield Variance