30.45% is the change from 706 to 921
Calculation steps:
[( 921 - 706 ) ÷ 706] x 100 = 30.45%
Formula
Percentage change = [(921 - 706) / 706] x 100
Subtract the new number by the original number
921 - 706 = 215
215 ÷ 706 = 0.3045325779036827
0.3045325779036827 x 100 = 30.45%