-55.49% is the change from 483 to 215
Calculation steps:
[( 215 - 483 ) ÷ 483] x 100 = -55.49%
Formula
Percentage change = [(215 - 483) / 483] x 100
Subtract the new number by the original number
215 - 483 = -268
-268 ÷ 483 = -0.5548654244306418
-0.5548654244306418 x 100 = -55.49%