The population of a city has decreased by 38% since it was last measured. if the current population is 9300, what was the previous population?

To get the previous population you would have to multiply 9,300 by 38% (.38) and then add it to 9,300, or you can also multiply it by 138% (1.38) and still get the same answer but this step is only a one step the first is a two step process

Origianl=100%
decresaed by 38%
100-38=62

62%=9300
find 100%
we can do ratio and proporition or something else

9300=62% of original
9300=0.62 times original
divide both sides by 0.62
14838.70967=original
about 14389