Black that carries Yellow and Chocolate to a Black that carries Yellow and Chocolate

25% Byc 12.5% Bc, 12.5% By, 12.5% Cy, 12.5% Yc,
6 1/4% BB, 6 1/4% Cc, 6 1/4% Y, 6 1/4% y(NBP)

EeBb + EeBb = 25% EeBb; 12.5% EEBb; 12.5% EeBB; 12.5% Eebb; 12.5% eeBb;

6 1/4% NBP, 6 1/4% eeBB; 6 1/4% EEbb; 6 1/4% EEBB