in riff-raff/public/javascripts/rickshaw.js [938:947]
Rickshaw.Fixtures.Number.formatKMBT = function(y) {
abs_y = Math.abs(y);
if (abs_y >= 1000000000000) { return y / 1000000000000 + "T" }
else if (abs_y >= 1000000000) { return y / 1000000000 + "B" }
else if (abs_y >= 1000000) { return y / 1000000 + "M" }
else if (abs_y >= 1000) { return y / 1000 + "K" }
else if (abs_y < 1 && y > 0) { return y.toFixed(2) }
else if (abs_y === 0) { return '' }
else { return y }
};