-9.18% is the change from 490 to 445
Calculation steps:
[( 445 - 490 ) ÷ 490] x 100 = -9.18%
Formula
Percentage change = [(445 - 490) / 490] x 100
Subtract the new number by the original number
445 - 490 = -45
-45 ÷ 490 = -0.09183673469387756
-0.09183673469387756 x 100 = -9.18%