company profit margin Generally speaking, the interest rate varies according to the term of measurement, indicating that the method has annual interest rate, monthly interest rate and daily interest rate. Following the "mad" foreign policy, for example, Mr Trump could go to war with north Korea or Iran. Or he could publish more inflammatory tweets about Islam's wickedness, which would allow individuals to be disrupted and marginalised into the arms of the islamic state (Isis) or other extremist groups. That would increase the likelihood of attacks on Isis, such as the "lone Wolf" in the United States, boasting or driving trucks in its own pedestrian area. There are a dozen people, and if not hundreds of people, the slain trump can wrap himself in the flag and say, "I told you so." If things get bad, trump and his generals can declare a state of emergency, suspend civil liberties and transform the United States into a truly populist state of Pluto. This approach periodically revised future plans based on the implementation of the plan and changes in the environment, and moved forward over the period to integrate short-term and medium-term plans organically. As it is difficult to accurately predict the future of the plan work affect organizational survival and the development of economy, politics, culture, technology, industry, customers and other factors change, and as the extension of planning period, the uncertainty is greater and greater. Therefore, the implementation of a planned implementation of a mechanical, or mechanical, and static execution of a strategic plan by a number of years ago may result in significant errors and losses. Rolling planning can avoid the consequences of this uncertainty. The specific approach is to make plans in a very short and thin way. Brexit offers a chance to "reshape the structure of the UK economy", but the impact of regulatory barriers could hurt carmakers and the financial sector.