0.003 is one-tenth of 0.03.
To find the result, simply raise each of these numbers to the appropriate power, then multiply the resulting value by the next one in line. This process required some effort, but I arrived at 56,700,00, and I verified my calculation to ensure its accuracy. It checks out. I hope this information is useful!
(12 - 9) / 12 = (40 - x) / 40
3/12 = (40 - x) / 40
40(1/4) = 40 - x
10 = 40 - x
10 - 40 = -x
-30 = -x
30 = x <=== percentage decrease from 40 to 30
