In the US each congregation asked all the family heads how much they would donate a month. The elders added all that together and then figured out how much the monthly expenses were. Whatever extra would be left over each month was pledged to the organization. Our hall sends $250/mnth from our congregation funds. The worldwide work donations still go directly to the borg. Also any extra funds above 3 months of expenses that was in the congregations bank account was sent to the Borg. Our hall kept 5k and sent off around 20 k.
The donation box that was for worldwide building has been eliminated Now there are two donation options at each hall. WWW and Local expenses