9.18% is the change from 621 to 678
Calculation steps:
[( 678 - 621 ) ÷ 621] x 100 = 9.18%
Formula
Percentage change = [(678 - 621) / 621] x 100
Subtract the new number by the original number
678 - 621 = 57
57 ÷ 621 = 0.09178743961352658
0.09178743961352658 x 100 = 9.18%