-72.97% is the change from 455 to 123
Calculation steps:
[( 123 - 455 ) ÷ 455] x 100 = -72.97%
Formula
Percentage change = [(123 - 455) / 455] x 100
Subtract the new number by the original number
123 - 455 = -332
-332 ÷ 455 = -0.7296703296703296
-0.7296703296703296 x 100 = -72.97%