While I'd agree that Trump is lying, Qasim's 77.1% & 75,2% are a classic example of how to misuse statistics. An alternative hypothesis is that the percentage of distributors and producers depends on wealth - you need capital for either and you aren't going to get a loan from the bank for something illegal.
An example of how to tell is to use a chi-square test for categorical data (see the link for some other tests).
https://en.wikipedia.org/wiki/Chi-squared_test#Example_chi-squared_test_for_categorical_data