Notes
A charity impact chart: a Proportion Bar in waffle mode shows where 100 donated bikes ended up, with the last segment drawn hollow for bikes still in the queue, beside a Stat for the year's total and Spec Rows giving the counts behind each colour. The waffle cell size is set per breakpoint so the ten-by-ten grid fits a 360px phone. Keep the segment values adding up to 100 (or set a fixed total) so each square stays one bike in a hundred.
