Can you please drop the 100 to make this unitless? If other code needs to format per unit numbers ("tanto por uno") as percentages, they could use `"{:%}".format(1) => '100.000000%'`. 
Also, rename it to either to `proportion` or `proportion_explained`. Maybe the second is more explicit. Both changes would make this consistent with the R package, which has this kind of output:
```
Importance of components:
                        CCA1    CCA2    CCA3    CA1    CA2    CA3     CA4
Eigenvalue            0.5940 0.10220 0.02869 0.9615 0.8221 0.5899 0.45778
Proportion Explained  0.1009 0.01735 0.00487 0.1633 0.1396 0.1002 0.07773
Cumulative Proportion 0.1009 0.11821 0.12308 0.2864 0.4259 0.5261 0.60386
```