-88.73% is the change from 488 to 55
Calculation steps:
[( 55 - 488 ) ÷ 488] x 100 = -88.73%
Formula
Percentage change = [(55 - 488) / 488] x 100
Subtract the new number by the original number
55 - 488 = -433
-433 ÷ 488 = -0.8872950819672131
-0.8872950819672131 x 100 = -88.73%