-97.14% is the change from 455 to 13
Calculation steps:
[( 13 - 455 ) ÷ 455] x 100 = -97.14%
Formula
Percentage change = [(13 - 455) / 455] x 100
Subtract the new number by the original number
13 - 455 = -442
-442 ÷ 455 = -0.9714285714285714
-0.9714285714285714 x 100 = -97.14%