Answer:
Multiplied by 10
Step-by-step explanation:
Given that Vance borrows an additional $3,600 when he has $400 of his own money to invest.
Thus if he has own money he would invest 400 getting a profit of x say
If he additionally borrows he would invest 400+3600 =4000 getting a profit of 10x
Thus we find that whether profit or loss would be multiplied by a scale factor of 10 exactly.