used the following cash flow schedule to determine how Jack Potts should invest his $1,000,000 in order to maximize his return at the start of year 4.

	Year 1	Year 2	Year 3	Year 4
A	-1	0.5	0.8
B		-1	<--->	1.25
C	-1	<--->	<--->	1.35
D			-1	1.13
E	-1	<--->	1.27
M1	-1	1.08
M2		-1	1.08
M3			-1	1.08

Jack wanted at least $50,000 in the money market each year (M1, M2, M3) and no more than $500,000 in any single investment. We found an optimal objective function value of $1,449,606 (rounded to the nearest dollar), so Jack's maximum possible net gain is about $449,606 under the given parameters.

Suppose Jack changes his mind about keeping at least $50,000 in the money market each year. He wants to know the change in his net gain if he allows a minimum of $0 in all investments, including the yearly money market. (None of the other parameters change.) His maximum possible net gain is, in fact, higher, by how much, to the nearest dollar?