0.0123
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.
438 + 382 ___ 820
559 * 438 = 244,842
734
31974 divided by 438 = 73
142