The number of trucks sold by B, C, F and H is how much percent less than the…

Concept

In a pie chart, all sectors together represent 100% of the total quantity.

If selected sectors account for S% of the whole, then they are (100 − S)% less than the whole, because the comparison base is the full 100%.

Application

1. The shares for B, C, F and H are 27%, 18%, 7% and 14%, respectively.

2. Add the selected shares: S = 27 + 18 + 7 + 14 = 66%.

3. Compute the percent less than the whole: ((100 − 66) / 100) × 100 = 34%.

Cross-check

The unselected companies A, D, E and G contribute 13% + 12% + 3% + 6% = 34%, which is exactly the gap from the whole.

Therefore, the required percentage is 34%.