39.91% is the change from 684 to 957
Calculation steps:
[( 957 - 684 ) ÷ 684] x 100 = 39.91%
Formula
Percentage change = [(957 - 684) / 684] x 100
Subtract the new number by the original number
957 - 684 = 273
273 ÷ 684 = 0.3991228070175439
0.3991228070175439 x 100 = 39.91%