-32.74% is the change from 391 to 263
Calculation steps:
[( 263 - 391 ) ÷ 391] x 100 = -32.74%
Formula
Percentage change = [(263 - 391) / 391] x 100
Subtract the new number by the original number
263 - 391 = -128
-128 ÷ 391 = -0.3273657289002558
-0.3273657289002558 x 100 = -32.74%