31.2% is the change from 702 to 921
Calculation steps:
[( 921 - 702 ) ÷ 702] x 100 = 31.2%
Formula
Percentage change = [(921 - 702) / 702] x 100
Subtract the new number by the original number
921 - 702 = 219
219 ÷ 702 = 0.31196581196581197
0.31196581196581197 x 100 = 31.2%