During Wednesday's trading session, from 1:00 until 2:00 GMT, the New Zealand Dollar depreciated against the Greenback by 1.81% It was a 108 pip move on the currency exchange rate.
The reason of the drop was the signal from the Reserve Bank of New Zealand of monetary policy easing, as the Bank decided to keep the rate unchanged.
Last week, the Federal Reserve rejected their decision to imply additional rate rises in 2019 due to lower expectations for the US economic growth this year.
In general, note that the RBNZ just like the rest of the commodity based country central banks is just following the Federal Reserve to keep the interest rates stable.