[[2(1)Subject to sub-paragraph (2), the basic rate is the following percentage of the non-resident parent's gross weekly income—E+W+S
12% where the non-resident parent has one qualifying child;
16% where the non-resident parent has two qualifying children;
19% where the non-resident parent has three or more qualifying children.
(2)If the gross weekly income of the non-resident parent exceeds £800, the basic rate is the aggregate of the amount found by applying sub-paragraph (1) in relation to the first £800 of that income and the following percentage of the remainder—
9% where the non-resident parent has one qualifying child;
12% where the non-resident parent has two qualifying children;
15% where the non-resident parent has three or more qualifying children.
(3)If the non-resident parent also has one or more relevant other children, gross weekly income shall be treated for the purposes of sub-paragraphs (1) and (2) as reduced by the following percentage—
[11%] where the non-resident parent has one relevant other child;
[14%] where the non-resident parent has two relevant other children;
[16%] where the non-resident parent has three or more relevant other children.]]