what is the answer to this

Oat cereal box:
24 × 5 × 25
= 3,000cm^2
Rice cereal box:
26 x 4 x 28
= 2,912cm^2
The oatmeal box has the greater volume.
It is 88cm^2 greater than the Rice Cereal Box
3,000 - 2,912 = 88cm^2