Therefore, the money in circulation decreases and price inflation subsides.

Literal

Therefore circulating money [subject-が] decreases, price-rise [topic-は] calms-down.

An economics explanation. よって (therefore) is a formal causal connector. 流通するマネー uses the loanword マネー (money) with the verb 流通する (circulate). 鎮静化する (to subside/calm down) is a formal compound verb for something becoming controlled.