からすると follows a noun. After a person or a group it gives their point of view: "to a parent", "for a foreigner". After something you can observe or measure, it means "judging from". からすれば means the same.
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To a parent, children are always children.
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To a foreigner, this custom might seem strange.
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Judging from his expression, something bad has happened.
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Judging from these grades, passing will be difficult.
Judging from evidence
When the noun is evidence, the rest of the sentence is an inference, so it usually ends in , or . The evidence is something you can see or check yourself. For something you were told, use .
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Given the price, this food ought to taste better.
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Judging from these clouds, it's going to rain soon.
からすると or からして
also means "judging from", but after a person it means "even", and gives no point of view.
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From the president's point of view, this plan probably looks risky.
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Even the president turns up late.
covers the same two meanings as からすると. For a person's point of view only, there is also
, "if you put yourself in X's place".
Lingaku