What you want to ask is how much is the annual depreciation of 200 clothes? 180 yuan. The annual depreciation charge for 200 pieces of clothes is 180 yuan. The depreciation charge is the original price of clothes minus the residual value of clothes divided by the service life. The calculation method is 200 minus 20 yuan divided by 1 year, which equals 180 yuan, and then divided by 1 year, which equals 180 yuan.