80.52% is the change from 421 to 760
Calculation steps:
[( 760 - 421 ) ÷ 421] x 100 = 80.52%
Formula
Percentage change = [(760 - 421) / 421] x 100
Subtract the new number by the original number
760 - 421 = 339
339 ÷ 421 = 0.8052256532066508
0.8052256532066508 x 100 = 80.52%