HANOI, March 12 Vietnam's central bank said on Monday it has cut the refinance rate by one percentage point to 14 percent from 15 percent earlier. The State Bank of Vietnam also trimmed the discount rate to 12 percent from 13 percent and lowered the cap on dong deposit rates banks could charge to 13 percent from 14 percent previously, as its governor promised last week. (Reporting by Ho Binh Minh; Editing by John Ruwitch)

Based on that paragraph can we conclude that this sentence is true?
The change made on March 12th was the largest cut to date.
It's impossible to say