The finance director of Paint Mixers Ltd has produced the table below showing the variance results for the first three months of the year:
January February March
Material price variance $3,000 A $2,000 A $1,000 A
Material mix variance $2,000 A $750 A $100 F
Material yield variance $4,000 A $2,000 A $50F
Which of the following interpretations of the variances analysis exercise above is NOT correct?