CREATE TABLE table_35402 ("Region" TEXT, "Employment  (  salaries & wages ) " TEXT, "Self employed" TEXT, "Investment income" TEXT, "Working tax credit" TEXT, "State pensions" TEXT, "Occupational pensions" TEXT, "Disability benefits" TEXT, "Other social security benefits" TEXT, "Other income sources" TEXT)

Employment ( salaries & wages) of 64%, and a Occupational pensions of 6% has what working tax credit?
SELECT "Working tax credit" FROM table_35402 WHERE "Employment ( salaries & wages)" = '64%' AND "Occupational pensions" = '6%'
SELECT "Working tax credit" FROM "table_35402" WHERE "Employment ( salaries & wages)" = '64%' AND "Occupational pensions" = '6%'