How much of the variance in "college percentage"can be accounted for by the total between-group variance?

Tests of Between-Subjects Effects Dependent Variable: College percentage Type Ill Sum Source of Squares df Mean Square F Sig. Corrected Model 459834.42 5 91966.884 98.302 000 Intercept 6185488.91 1 6185488.91 6611.549 .000 CityRural 2232.938 2232.938 2.387 .123 SchoolType 217593.790 2 108796.895 116.291 000 CityRural * SchoolType 15203.691 2 7601.846 8.125 .000 Error 1820596.34 1946 935.558 Total 12229107.0 1952 Corrected Total 2280430.76 1951 a. R Squared = .202 (Adjusted R Squared = .200)