Nearest Lon Lat to Waypoint Formula Issue

[p500uk]

Have adapted an array formula from a previous thread - "Need to compare Latitude & Longitude coordinates to find closest office"

The formula is in C2 and picks up Lon and Lat from A1 & A2 and locates nearest from H2:J7:

{=INDEX($H$2:$H$7;MATCH(SMALL((ABS($A2-$I$2:$I$7)^2+ABS($B2-$J$2:$J$7)^2)^(0.5);1);(ABS($A2-$I$2:$I$7)^2+ABS($B2-$J$2:$J$7)^2)^(0.5);0))}

I calculate the result to be 16.09km from the Waypoint however when i tested this i found it to be incorrect as closet in this case is 6394 (Red) at 15.99km

Can anyone see what is wrong within this formula?

A	B	C	D	E	F
Lon	Lat	Nearest	Lon	Lat	Distance
3.53	49.7366666667	6402	3.3106111111	49.708	16.0

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H	I	J	K
Time	Lon	Lat	Distance From WayPoint
6388	3.3063611111	49.73825	16.0726250391
6389.5	3.30675	49.7353055556	16.0449141001
6394	3.3081111111	49.7253333333	15.997733609
6394.5	3.3083055556	49.7238611111	15.9977815714
6402	3.3106111111	49.708	16.0900565802
6402.5	3.3108055556	49.7065277778	16.1098474752

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