-94.97% is the change from 497 to 25
Calculation steps:
[( 25 - 497 ) ÷ 497] x 100 = -94.97%
Formula
Percentage change = [(25 - 497) / 497] x 100
Subtract the new number by the original number
25 - 497 = -472
-472 ÷ 497 = -0.9496981891348089
-0.9496981891348089 x 100 = -94.97%