-95.34% is the change from 494 to 23
Calculation steps:
[( 23 - 494 ) ÷ 494] x 100 = -95.34%
Formula
Percentage change = [(23 - 494) / 494] x 100
Subtract the new number by the original number
23 - 494 = -471
-471 ÷ 494 = -0.9534412955465587
-0.9534412955465587 x 100 = -95.34%