-17.11% is the change from 491 to 407
Calculation steps:
[( 407 - 491 ) ÷ 491] x 100 = -17.11%
Formula
Percentage change = [(407 - 491) / 491] x 100
Subtract the new number by the original number
407 - 491 = -84
-84 ÷ 491 = -0.1710794297352342
-0.1710794297352342 x 100 = -17.11%