Let a and b be the % of major and minor,
a + b = 0
b = 100 - a
% excess = ((a - b)/(a + b)) x 100
(a - (100 - a))/100 x 100% = 89 %
2a = 189 %
a = 94.5 %
b = 100 - 94.5 = 5.5 %
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