In the late 80's, our hall was built and it cost about 150,000$ canadian. Every month, we had to give a certain amount to pay for the hall. After 3 or 4 years, we still owed 135,000 for the hall. It just didn't figure out.
Since the interest rate was very high in the late 80's, a brother told me that probably the elders put the money in a bank account and kept the interest.
In other words, the elders gave to the Watchtower the right amount that we gave for paying the hall, but would have kept the interest money.
After 6 or 7 years, finally the amount that we owed for the hall was coming down fast enough.
Is this possible, or did we speculate?