P and Q together can complete a work in 2/3rd times more than the time taken by R and S together. When R started work alone and on second day P joined him, then the remaining work is completed in 18 days. Q can complete the whole work alone in 20 days and R takes 70% more time than Q to complete the work alone.

If time taken by S alone is decreased by 13%, and P and S together are assigned to do a job then approximately what percent work will be completed by P and S together in 5 days?