13.57% is the change from 597 to 678
Calculation steps:
[( 678 - 597 ) ÷ 597] x 100 = 13.57%
Formula
Percentage change = [(678 - 597) / 597] x 100
Subtract the new number by the original number
678 - 597 = 81
81 ÷ 597 = 0.135678391959799
0.135678391959799 x 100 = 13.57%