23.38% is the change from 278 to 343
Calculation steps:
[( 343 - 278 ) ÷ 278] x 100 = 23.38%
Formula
Percentage change = [(343 - 278) / 278] x 100
Subtract the new number by the original number
343 - 278 = 65
65 ÷ 278 = 0.23381294964028776
0.23381294964028776 x 100 = 23.38%