Edit your data in the Inputs table on the sidebar.
Visualize the most important data in the Filtered view.
Visualize wonderful charts in the graph section.
Inspect all the generated data in the data section inside the data tables folder.
Have fun and share back your improvements with me on twitter, so we can learn from each other.
p.s. Some changes neeed a lot of calculations so it may take some moments to see it reflected everywhere.