-39.64% is the change from 497 to 300
Calculation steps:
[( 300 - 497 ) ÷ 497] x 100 = -39.64%
Formula
Percentage change = [(300 - 497) / 497] x 100
Subtract the new number by the original number
300 - 497 = -197
-197 ÷ 497 = -0.3963782696177062
-0.3963782696177062 x 100 = -39.64%