-5.5% is the change from 491 to 464
Calculation steps:
[( 464 - 491 ) ÷ 491] x 100 = -5.5%
Formula
Percentage change = [(464 - 491) / 491] x 100
Subtract the new number by the original number
464 - 491 = -27
-27 ÷ 491 = -0.054989816700611
-0.054989816700611 x 100 = -5.5%