In the Bolting and Coloring Department, 400,000 ounces of other materials were used to produce the output of the period. Using the proposed standard cost sheet, calculate the following variances for the Coloring and Bolting Department:

a. Materials price variance (for other materials only)

b. Materials usage variance (for other materials only)

c. Labor rate variance

d. Labor usage variance In calculating the variances, which method did you use to compute the actual out¬

put of the period—FIFO or weighted average? Explain.