-21.73% is the change from 497 to 389
Calculation steps:
[( 389 - 497 ) ÷ 497] x 100 = -21.73%
Formula
Percentage change = [(389 - 497) / 497] x 100
Subtract the new number by the original number
389 - 497 = -108
-108 ÷ 497 = -0.21730382293762576
-0.21730382293762576 x 100 = -21.73%