8.78% is the change from 319 to 347
Calculation steps:
[( 347 - 319 ) ÷ 319] x 100 = 8.78%
Formula
Percentage change = [(347 - 319) / 319] x 100
Subtract the new number by the original number
347 - 319 = 28
28 ÷ 319 = 0.0877742946708464
0.0877742946708464 x 100 = 8.78%