Calculate Derivative Graph
The derivative graph shows the instantaneous slope of the original function across its domain.
Formula: fβ²(x) = slope of f(x) at x
Keep rates, balances, prices, and time periods on the same basis. An annual rate should not be combined with a monthly period unless the formula accounts for that conversion.
Check the final amount against the starting figure and rate. A large unexpected difference often points to a period or percentage entered in the wrong form.