Week Eight Individual Assignments. The money multiplier (MM) ratio is =10.LEOFF Plan 2 is a 401(a) lifetime retirement pension plan available to law enforcement officers and firefighters in Washington. This video explains the key formula and approach to calculating the money multiplier in the economy with leakages. Students will learn how the money supply in the U.S. economy increases and decreases. How to Apply for Washington Healthplanfinder Coverage: Visit wahealthplanfinder. Org or use the WAPlanfinder mobile app. Better estimation and use of multipliers can play a key role in ensuring macroeconomic forecast accuracy.