1) Area of the original garden = 6 feet * 8 feet = 48 ft^2
2) Area of the garden adding the 2 foot wide path:
(6 + 4) feet * (8 + 4) feet = 10 feet * 12 feet = 120 ft^2
3) Percent the original garden is of the new total area:
% = (original area / new total area) * 100 = (48 ft^2 / 120 ft^2 ) * 100 = 40%
Answer: 40%