∆M = 100 1−(1− f) = 100 f = 1000. Reserve Requirement and the Multiplier Answer Key.Complete the table below demonstrating your knowledge of bank reserves and the power of the money multiplier. Calculate the money supply, the currency deposit ratio, the excess reserve ratio, and the money multiplier. b. The multiplier effect refers to the proportional amount of increase, or decrease, in final income that results from an injection, or withdrawal, of capital. Money multiplier shows the ratio of change in total money supply due to a given change in the quantity of high powered money or ratio of M to H.