-40.73% is the change from 491 to 291
Calculation steps:
[( 291 - 491 ) ÷ 491] x 100 = -40.73%
Formula
Percentage change = [(291 - 491) / 491] x 100
Subtract the new number by the original number
291 - 491 = -200
-200 ÷ 491 = -0.4073319755600815
-0.4073319755600815 x 100 = -40.73%