-3.06% is the change from 490 to 475
Calculation steps:
[( 475 - 490 ) ÷ 490] x 100 = -3.06%
Formula
Percentage change = [(475 - 490) / 490] x 100
Subtract the new number by the original number
475 - 490 = -15
-15 ÷ 490 = -0.030612244897959183
-0.030612244897959183 x 100 = -3.06%