
Answer:
15,351.00 unfavourable
Explanation:
Material quantity variance occurs when the actual quantity used  to achieved a given level of output is more or less than the standard quantity.
It is determined by the difference between the actual  and standard quantity of material for the actual level of output multiplied by the the standard price
                                               gram
300 units should have used (300× 4.6)               1380
but did used                                     2,400
                                              1020
Standard price                                  × 15.05
Material quantity variance                     15,351.00 unfavourable
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