34.45% is the change from 685 to 921
Calculation steps:
[( 921 - 685 ) ÷ 685] x 100 = 34.45%
Formula
Percentage change = [(921 - 685) / 685] x 100
Subtract the new number by the original number
921 - 685 = 236
236 ÷ 685 = 0.3445255474452555
0.3445255474452555 x 100 = 34.45%