83.91% is the change from 373 to 686
Calculation steps:
[( 686 - 373 ) ÷ 373] x 100 = 83.91%
Formula
Percentage change = [(686 - 373) / 373] x 100
Subtract the new number by the original number
686 - 373 = 313
313 ÷ 373 = 0.839142091152815
0.839142091152815 x 100 = 83.91%