import java.util.*;
public class PriceAdjustment{
    public static int bumpMe(int price, int increase, boolean updown){
       return updown ? price + price* increase/100 : price - price* increase/100;
    }
        public static void main(String[] args){
        bumpMe(1000,10,true);
         bumpMe(999,10,false);
            }
}