63.66% is the change from 421 to 689
Calculation steps:
[( 689 - 421 ) ÷ 421] x 100 = 63.66%
Formula
Percentage change = [(689 - 421) / 421] x 100
Subtract the new number by the original number
689 - 421 = 268
268 ÷ 421 = 0.6365795724465558
0.6365795724465558 x 100 = 63.66%