[tex]\text{Let it be} ~x\%\\\\~~~~~~x\% \cdot 1248 = 1.56\\\\\implies \dfrac x{100} \cdot 1248 = \dfrac{156}{100}\\\\\implies 1248x= 156~~~~~~~~~~;[\text{Multiply both sides by 100}]\\\\\implies x = \dfrac{156}{1248}\\\\\implies x =\dfrac 18\\\\\implies x = 0.125[/tex]
[tex]\text{Hence, 1.56 kg is 0.125\% of 1248 g.}[/tex]
