1 Calculate rate of interest in decimal, solve for r. 2  r = (A/P) 1/t - 1. 3  Calculate rate of interest in percent. 4  R = r * 100. 5  Calculate time, solve for t. 6  t = t = ln(A/P) / ln(1 + r) = [ ln(A) - ln(P) ] / ln(1 + r).
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âThe first rule of competition: In order to win you have to want it more!â Desparate Housewives. It seems like there are people who live in a fantasy world. In this fantasy world everyone is equal and there is no such thing as competition or âlosersâ.ompetition is natural; it is how the world works. Regardless of how much we try to tell ourselves that we donât really want to compete with someone else the fact is we do. We want to be the best at one thing or another.