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)
前期比 is read as ぜんきひ (zenkihi) and means compared to previous period.
ぜんきひ
zenkihi
ぜんねんどうげつひ
compared to the same month the previous year (e.g. in statistics, sales, electricity usage)