-92.53% is the change from 455 to 34
Calculation steps:
[( 34 - 455 ) ÷ 455] x 100 = -92.53%
Formula
Percentage change = [(34 - 455) / 455] x 100
Subtract the new number by the original number
34 - 455 = -421
-421 ÷ 455 = -0.9252747252747253
-0.9252747252747253 x 100 = -92.53%