This is an auxiliary template of Template:Rnd, called if the number, after rounding, is 1e9 or more.
Its first parameter is the rounded number, its second the rounding parameter.
It calls Template:Rnd/d, passing on its first and second parameter, with as third parameter the result of Template:Order of magnitude, and as fourth parameter "+".
Examples
सम्पादन गर्नुहोस्{{rnd/c8dec0|1540000000|-7}}
→ 1.54×109{{rnd/c8dec0|1542689271|2}}
→ 1.54268927100×109