The table shows the relationship between the amount of money in a bank account at the end of each month. Determind wether it's growth or decay and whether it grows or decays by a constant percent Table :
Month money
1. 500
2. 525
3. 551.25
4. 578.81

Answer choices :
A. decays by percent that varies
B. Decays by a constant percent
C. Grows by a percent that varies
D. Grows by a constant percent