83.42% is the change from 374 to 686
Calculation steps:
[( 686 - 374 ) ÷ 374] x 100 = 83.42%
Formula
Percentage change = [(686 - 374) / 374] x 100
Subtract the new number by the original number
686 - 374 = 312
312 ÷ 374 = 0.8342245989304813
0.8342245989304813 x 100 = 83.42%