a present value of a machine is $ 400 . its value depletiation rate is 25 % per annum then find the machine value after 2 years ?
"p = $ 400 r = 25 % t = 2 years machine value after 2 years = p [ ( 1 - r / 100 ) ^ t ] = 400 * 3 / 4 * 3 / 4 = $ 225 approximately answer is e"
multiply(400, power(subtract(const_1, divide(25, const_100)), 2))