1114(8) = 18^3 + 18^2 + 18^1 + 48^0 = 512 + 64 + 8 + 4 = 588(10)

576(8) = 58^2 + 78^1 + 6*8^0 = 320 + 56 + 6 = 382(10)

11001100(2) = 12^7 + 12^6 + 02^5 + 02^4 + 12^3 + 12^2 + 02^1 + 02^0 = 128 + 64 + 8 + 4 = 204(10)