-45.42% is the change from 491 to 268
Calculation steps:
[( 268 - 491 ) ÷ 491] x 100 = -45.42%
Formula
Percentage change = [(268 - 491) / 491] x 100
Subtract the new number by the original number
268 - 491 = -223
-223 ÷ 491 = -0.45417515274949083
-0.45417515274949083 x 100 = -45.42%