65.56% is the change from 421 to 697
Calculation steps:
[( 697 - 421 ) ÷ 421] x 100 = 65.56%
Formula
Percentage change = [(697 - 421) / 421] x 100
Subtract the new number by the original number
697 - 421 = 276
276 ÷ 421 = 0.6555819477434679
0.6555819477434679 x 100 = 65.56%