89.31% is the change from 421 to 797
Calculation steps:
[( 797 - 421 ) ÷ 421] x 100 = 89.31%
Formula
Percentage change = [(797 - 421) / 421] x 100
Subtract the new number by the original number
797 - 421 = 376
376 ÷ 421 = 0.8931116389548693
0.8931116389548693 x 100 = 89.31%