-10.1% is the change from 495 to 445
Calculation steps:
[( 445 - 495 ) ÷ 495] x 100 = -10.1%
Formula
Percentage change = [(445 - 495) / 495] x 100
Subtract the new number by the original number
445 - 495 = -50
-50 ÷ 495 = -0.10101010101010101
-0.10101010101010101 x 100 = -10.1%