|----------+------------|
|  Average | Percentage |
|----------+------------|
| 3.01E+00 |         3. |
| 7.31E+00 |         7. |
|----------+------------|
| 2.72E+01 |        28. |
| 4.09E+01 |        41. |
|----------+------------|
| 6.80E+01 |        69. |
| 7.07E+01 |        72. |
|----------+------------|
| 7.19E+01 |        73. |
| 9.87E+01 |       100. |
|----------+------------|
#+TBLFM: $2=100*$1/@>$1;f0