Table:
level of education

less than a high school diploma
high school diploma/some postsecondary
trade certificate or college diploma
university degree

men
2014 dollars

median employment income

employed some time in reference year
30,400
34,500
43,700
47,100

employed all year
36,200
41,200
49,800
56,200

employed full year, full time in reference year
36,300
43,200
51,200
58,400

median individual income

total individual income before taxes
26,600
34,400
44,700
46,300

total individual income after taxes
24,700
30,400
38,500
40,500

median family income

total economic family income before taxes
35,200
45,200
52,200
54,000

total economic family income after taxes
31,700
39,500
44,900
47,200

women

employment income

employed some time in reference year
13,000
20,600
28,900
37,800

employed all year
18,400
26,400
33,700
46,300

employed full year, full time in reference year
21,100
30,200
36,000
50,000

median individual income

total individual income before taxes
19,100
21,700
31,400
37,600

total individual income after taxes
18,800
20,800
28,900
34,200

median family income

total economic family income before taxes
25,400
36,600
46,300
56,100

total economic family income after taxes
24,400
32,800
40,300
48,400

Statement: among females, the difference between the before-tax family income with a high school diploma and that of non-completers was 28%.
Question: what is the difference between the difference between the before-tax family income with a high school diploma and that of non-completers among females?
Answer: [0.440945]