Problem 1969. Self-Description

This is a simplified version of the xkcd comic by the same name.

Simply return the angle (in degrees) of the 'black' sector of the pie chart that would make the graph description accurate.

Details:

Assume that the pie chart circle covers 36% of the total image area, and that the text, textbox lines, image frame, and outer circumference of the pie (anything painted in black except the pie chart 'black' sector) add up to 6.4% of the total image area.

Return the angle in degrees rounded to 4 decimals.

("detail oriented" players may also assume that the portion of the textbox line which is white (overlapping the pie chart 'black' sector) has already been discounted twice from the 6.4% value above)