-66.4% is the change from 497 to 167
Calculation steps:
[( 167 - 497 ) ÷ 497] x 100 = -66.4%
Formula
Percentage change = [(167 - 497) / 497] x 100
Subtract the new number by the original number
167 - 497 = -330
-330 ÷ 497 = -0.6639839034205232
-0.6639839034205232 x 100 = -66.4%