-7.14% is the change from 490 to 455
Calculation steps:
[( 455 - 490 ) ÷ 490] x 100 = -7.14%
Formula
Percentage change = [(455 - 490) / 490] x 100
Subtract the new number by the original number
455 - 490 = -35
-35 ÷ 490 = -0.07142857142857142
-0.07142857142857142 x 100 = -7.14%