2 percent bodyfat per week for e.g. a 200lb person means about 4lbs a week of fat alone. You would need a deficit of at least 2000kcals per day for that.
thats absolutely do-able as dieting at half your BMR is a deficit of approx 1000kcal depending on what weight you are, and weight training for 45 minutes plus a 15-30 minutes cardio will burn 1000kcal..meaning a 2000kcal deficit. ..if you climb some stairs during the day, or walk a distance, or skip, or whatever then itll be more..
2000kcal per day, or 14000kcal per week deficit gives you 1.5kg = 3.3lb of fat per week lost..maximum theoretical.
FWIW ive lost 8% bfat since jan 4th, and closer to 12% bfat since Dec 15th. So thats 8% in 60 days, and 12% in 80 days..approx 1% per week and i havent really dieted too hard..just consistent training, clean eating and consuming less than my BMR.
if you then throw in some clenbuterol, AAS and GH then that'll accelerate things even further by raising BMR, and maintain mass so whatever the deficit is, itll be mostly fat that goes.
I expect that it gets harder the lower you go as the BMR drops and you either eat less and less or exercise more and more.