-17.55% is the change from 319 to 263
Calculation steps:
[( 263 - 319 ) ÷ 319] x 100 = -17.55%
Formula
Percentage change = [(263 - 319) / 319] x 100
Subtract the new number by the original number
263 - 319 = -56
-56 ÷ 319 = -0.1755485893416928
-0.1755485893416928 x 100 = -17.55%