-57.95% is the change from 497 to 209
Calculation steps:
[( 209 - 497 ) ÷ 497] x 100 = -57.95%
Formula
Percentage change = [(209 - 497) / 497] x 100
Subtract the new number by the original number
209 - 497 = -288
-288 ÷ 497 = -0.579476861167002
-0.579476861167002 x 100 = -57.95%