2.3% is the change from 913 to 934
Calculation steps:
[( 934 - 913 ) ÷ 913] x 100 = 2.3%
Formula
Percentage change = [(934 - 913) / 913] x 100
Subtract the new number by the original number
934 - 913 = 21
21 ÷ 913 = 0.023001095290251915
0.023001095290251915 x 100 = 2.3%