-55.76% is the change from 486 to 215
Calculation steps:
[( 215 - 486 ) ÷ 486] x 100 = -55.76%
Formula
Percentage change = [(215 - 486) / 486] x 100
Subtract the new number by the original number
215 - 486 = -271
-271 ÷ 486 = -0.5576131687242798
-0.5576131687242798 x 100 = -55.76%