-26.39% is the change from 667 to 491
Calculation steps:
[( 491 - 667 ) ÷ 667] x 100 = -26.39%
Formula
Percentage change = [(491 - 667) / 667] x 100
Subtract the new number by the original number
491 - 667 = -176
-176 ÷ 667 = -0.2638680659670165
-0.2638680659670165 x 100 = -26.39%