This is in part due to exchange-rate movements: the depreciation of the dollar against many other currencies has blunted the impact of an increase in the dollar price of food.
这部分是由于汇率的运动：美元相对于其它许多货币的贬值削弱了以美元计价的食品价格上涨带来的影响。
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The IMF also expects Sri Lanka to boost exchange-rate flexibility, which could suggest that further unwelcome (from the Sri Lankan perspective) depreciation lies ahead.
The method in computing the depreciation (or appreciation) percentage of the exchangerate is very important, and investors in the exchange market also care about it.