Hi Sreenivasa Rao Yarru,
Below is the Initial Memory allocated to each variable of type DEC.
data a TYPE DECFLOAT34. 16 bytes
data b TYPE DECFLOAT16. 8 bytes
data c TYPE dec03. 3 bytes
data d TYPE dec07. 4 bytes
data e TYPE dec12. 7 bytes
Thanks.
Nishant Bansal