C#

float[] array1 = new float[10];

float[] array2 = new float[10];

Random random = new Random();

for (int i = 0; i < array1.Length; i++)

{

   array1[i] = random.Next(1000, 1000);

   Console.WriteLine($"Client {i}. {array1[i]}$");

}

Console.WriteLine("================After one year================");

for (int i = 0; i < array1.Length; i++)

{

   array2[i] = array1[i] * 1.2f; //1 + 20 / 100

   Console.WriteLine($"Client {i}. {array2[i]}$");

}