438 as % rate:= 438 * 100%= 43800%
438, 876, 1314, 1752, 2190, 2628, 3066 +438 . . .
438-122 = 316
438
630 438 7800 or 630 438 7100 630 438 7800 or 630 438 7100
438 rounded up would be 450. 438 rounded down would be 400.
73
734
559 * 438 = 244,842
438 x 35506 = 15551628
438 + 382 ___ 820
438