The Government's questioning the numbers the US is using to justify new tariffs.

The Trump administration claims it is imposing a 10 percent tariff on our goods, in response to New Zealand's 20 percent tariff on US goods.

But Trade Minister Todd McClay says our tariffs average under 2 percent, with the highest about 5 percent.

"It looks like they've used a different type of calculation as to balance of trade as opposed to tariff rate for some reason."

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