They dabble in scaling 2-dimensional objects by radius instead of the area, but not quite by radius. A ~40% (cumulative) increase in dollars is shown as a ~70%

They dabble in scaling 2-dimensional objects by radius instead of the area, but not quite by radius. A ~40% (cumulative) increase in dollars is shown as a ~70% increase in pixel area (which is a ~30% increase in radius, not ~40%).