Ratios (aka % discount) should be plotted as thinner sticks in horizontal bars

[fabioannovazzi]

Not like this

[fabioannovazzi]

with basic metrics

[fabioannovazzi]

with price small multiples

[fabioannovazzi]

with average discount small multiples

[fabioannovazzi]

When not plotting small multiples, offset does not really work and hides part of the bar most to the right. Until we figure out why, we reduce bargap for ratios (but bargap still larger than for measures)