To find the percent decrease[tex]\mathsf{Percent\ Decrease = \left( \dfrac{Amount\ of\ Decrease}{Original\ Value} \right) \times 100}[/tex][tex]\mathsf{Original\ Value = Current\ Value + Decrease = 380{,}000 + 20{,}000 = 400{,}000}[/tex][tex]\mathsf{= \left( \dfrac{20{,}000}{400{,}000} \right) \times 100}[/tex][tex]\mathsf{= 0.05 \times 100}[/tex][tex]\boxed{\mathsf{5\%\ decrease}}[/tex]Answer: a. 5℅