-15.07% is the change from 491 to 417
Calculation steps:
[( 417 - 491 ) ÷ 491] x 100 = -15.07%
Formula
Percentage change = [(417 - 491) / 491] x 100
Subtract the new number by the original number
417 - 491 = -74
-74 ÷ 491 = -0.15071283095723015
-0.15071283095723015 x 100 = -15.07%