The following data relates to QA firm.
Cost standards: 
Actual results:
7800 units were produced. 
Calculate the labour efficiency variance.
Definitions:
Late Adolescence
A developmental stage occurring from approximately 17 to 19 years of age, marked by increased independence and self-identity exploration.
Teenagers
Individuals who are in the phase of life occurring between childhood and adulthood, generally between the ages of 13 and 19.
Mothers
Female parents who may carry, give birth to, or raise children, playing a crucial role in their development and well-being.
Conflicts
Situations where two or more parties have incompatible goals, interests, or values.
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