-7.54% is the change from 491 to 454
Calculation steps:
[( 454 - 491 ) ÷ 491] x 100 = -7.54%
Formula
Percentage change = [(454 - 491) / 491] x 100
Subtract the new number by the original number
454 - 491 = -37
-37 ÷ 491 = -0.07535641547861507
-0.07535641547861507 x 100 = -7.54%