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Step 1: Review the formula of compound interest final value.Substituting r = 0.01 and n = 240 into the above formula, we can get:\begin{align*}

1.01 {240} \ approximate 10.8926 is calculated by a calculator.\begin{align*}

If it rises by 1% or 2% every day, how much will it increase in 240 trading days a year?Substituting r = 0.01 and n = 240 into the above formula, we can get:Substituting r = 0.01 and n = 240 into the above formula, we can get: