-55.05% is the change from 485 to 218
Calculation steps:
[( 218 - 485 ) ÷ 485] x 100 = -55.05%
Formula
Percentage change = [(218 - 485) / 485] x 100
Subtract the new number by the original number
218 - 485 = -267
-267 ÷ 485 = -0.5505154639175258
-0.5505154639175258 x 100 = -55.05%