-61.1% is the change from 491 to 191
Calculation steps:
[( 191 - 491 ) ÷ 491] x 100 = -61.1%
Formula
Percentage change = [(191 - 491) / 491] x 100
Subtract the new number by the original number
191 - 491 = -300
-300 ÷ 491 = -0.6109979633401222
-0.6109979633401222 x 100 = -61.1%