7.21% is the change from 319 to 342
Calculation steps:
[( 342 - 319 ) ÷ 319] x 100 = 7.21%
Formula
Percentage change = [(342 - 319) / 319] x 100
Subtract the new number by the original number
342 - 319 = 23
23 ÷ 319 = 0.07210031347962383
0.07210031347962383 x 100 = 7.21%