-95.37% is the change from 497 to 23
Calculation steps:
[( 23 - 497 ) ÷ 497] x 100 = -95.37%
Formula
Percentage change = [(23 - 497) / 497] x 100
Subtract the new number by the original number
23 - 497 = -474
-474 ÷ 497 = -0.9537223340040242
-0.9537223340040242 x 100 = -95.37%