86.94% is the change from 421 to 787
Calculation steps:
[( 787 - 421 ) ÷ 421] x 100 = 86.94%
Formula
Percentage change = [(787 - 421) / 421] x 100
Subtract the new number by the original number
787 - 421 = 366
366 ÷ 421 = 0.8693586698337292
0.8693586698337292 x 100 = 86.94%