-23.27% is the change from 391 to 300
Calculation steps:
[( 300 - 391 ) ÷ 391] x 100 = -23.27%
Formula
Percentage change = [(300 - 391) / 391] x 100
Subtract the new number by the original number
300 - 391 = -91
-91 ÷ 391 = -0.23273657289002558
-0.23273657289002558 x 100 = -23.27%