In which month was there the maximum percentage change (over the previous month) in monthly sale of Low-sulphur diesel fuel to commercial/Institutional consumers in 2003 in US?
In February, percentage change = 17.9096.7 × 100 = 18.7 % (approx)
In April, percentage change = 17.32113.2 × 100 = 17% (approx)
Hence, maximum percentage change will be in February.