Respuesta :

sqdancefan

Answer:

  85% decrease

Step-by-step explanation:

The percentage change is the change fraction multiplied by 100%.

  percent change = change / original × 100%

  = (3 -20)/20 × 100%

  = -17/20 × 100% = -85%

A decrease from £20 to £3 is a change of -85%.