The greatest common factor for {115, 230, 345} is 115. Note that 115 x 2 = 230, and 115 x 3 = 345.
230% of 50 = 230% * 50 = 2.3 * 50 = 115
115 plus 115 = 230
115
(190 + 230)/2 = 210190 + 20 = 210 = 230 - 20
115% of 200 is 230.
115
230 divided by 115 is 2.
115 x 2 = 230
200 × 100 ÷ 230 = 86.95%
230
230