2,375 is monthly mtge. What is my monthly take home pay if 30% is used to pay mortgage?

30% of take-home pay is $2,375

so 30% represents $2375

so divide 2375 by .3 to get your take home pay, which is $7916.67

check: 30% of 7916.67 = 7916.67*.3 = $2375
(nice take home pay, even a bit better than my pension, lol)