What does ₹ 250 amounts to in 2 years with compound interest

What does ₹ 250 amounts to in 2 years with compound interest at the rate of 4% in the 1st year and 8% in the second year ?

Here , P = ₹ 250 , R₁ = 4% , R₂ = 8%

A = P		1 +	R₁		^T₁		1 +	R₂		^T₂
			100					100

A = 250		1 +	4			1 +	8
			100				100

A = 250 ×	104	×	108
	100		100

∴ A = ₹ 280.80