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Short, clear guides organized by level.
Mini lessons
One formula, worked examples. Start with the easy ones.
EasyHow to calculate return on investment (ROI)How much did you gain or lose compared with what you paid?
ROI % = (final value + dividends − cost) ÷ cost × 100EasyPercentage change in priceWhat "the share rose 15%" actually means.Change % = (new price − old price) ÷ old price × 100EasySimple vs compound returnsWhy money grows faster when you reinvest the returns.Simple = amount × (1 + rate × years)No published guides in this track yet. In the meantime, start with these short lessons:
EasyHow to calculate return on investment (ROI)How much did you gain or lose compared with what you paid?
Or play Maryam’s interactive story →ROI % = (final value + dividends − cost) ÷ cost × 100EasyPercentage change in priceWhat "the share rose 15%" actually means.Change % = (new price − old price) ÷ old price × 100EasySimple vs compound returnsWhy money grows faster when you reinvest the returns.Simple = amount × (1 + rate × years)EasyDividend yieldHow much cash a share pays you each year relative to its price.Dividend yield % = annual dividend per share ÷ share price × 100EasyThe rule of 72A mental shortcut: when will your money double?Years to double ≈ 72 ÷ yearly return %EasyReal return after inflationIs your money really growing, or just the number?Roughly: real return ≈ return − inflation