-67% is the change from 497 to 164
Calculation steps:
[( 164 - 497 ) ÷ 497] x 100 = -67%
Formula
Percentage change = [(164 - 497) / 497] x 100
Subtract the new number by the original number
164 - 497 = -333
-333 ÷ 497 = -0.670020120724346
-0.670020120724346 x 100 = -67%