前年同月比
ぜんねんどうげつひ
compared to the same month the previous year (e.g. in statistics, sales, electricity usage)
前年同期 is read as ぜんねんどうき (zennendouki) and means year-before period.
ぜんねんどうき
zennendouki
ぜんねんどうげつひ
compared to the same month the previous year (e.g. in statistics, sales, electricity usage)