question: public static String calculateDiscountPercent ( Context context , double price , double discountPrice ) { int percent ; if ( discountPrice >= price ) { percent = 0 ; } else { percent = ( int ) Math . round ( 100 - ( ( discountPrice / price ) * 100 ) ) ; } return String . format ( context . getString ( R . string . format_price_discount_percents ) , percent ) ; }
target:  Method calculates the percentage discounts.