The organization of the Girl Sprouts has completed its annual cookie drive. The sales are reported in the accompanying ogive. 
Approximate the percentage of girls who sold more than 70 boxes of cookies.
Definitions:
Direct Labor Time Variance
The difference between the estimated time for production and the actual time taken, multiplied by the wage rate.
Direct Labor Rate Variance
The difference between the actual cost of direct labor and the standard cost, indicating efficiency in labor usage.
Direct Labor Rate Variance
The difference between the actual labor cost incurred and the expected (or standard) labor cost for the actual production level.
Direct Labor Variances
The differences between the budgeted and actual labor costs incurred during a production process, analyzed to control and optimize labor expenses.
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