Provide correct formula

Q. 2. (a) (i) Consider an individual A with initial wealth A(t). Assume that asset holdings earn a rate of return of r per cent. Individual A receives WA as annual income during the current year and this is added to her wealth (plus interest at fixed rate r percent). A fixed fraction is consumed from the total and the remaining fraction becomes the new wealth level Alt + 1). If SA is the savings rate, write down the formula for A(t+1) i.e., A's wealth next year