Cumulative Total, Accumulated Total
noun, verbal noun
Measure how much you've accumulated and you'll have a cumulative total. That total includes all the things you've bought since the beginning of time. Probably.
るいけい
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
このサイトでは、人気アプリの累計ダウンロードランキングを毎日更新しています。
I update the total download rankings for popular apps everyday on this site.