can someone help me with this practice problem i do not understand it

Question Help Summit Systems has an equity cost of capital of 100%, will pay a dividend of S2 25 in one year, and its dividends had been expected to grow by 70% per year. You read in the paper that Summit Systems has revised as growth prospects and now expects its dividends to grow at a rate of 30% per year forever a. What is the drop in value of a share of Summit Systems stock based on this information? b. If you tried to sell your Summit Systems stock after reading this news what price would you be likely to get? Why? a. What is the drop in value of a share of Summit Systems stock based on this information? The drop in value of a share of Summit Systems stocks 2. Round to the nearest cent