101.19% is the change from 421 to 847
Calculation steps:
[( 847 - 421 ) ÷ 421] x 100 = 101.19%
Formula
Percentage change = [(847 - 421) / 421] x 100
Subtract the new number by the original number
847 - 421 = 426
426 ÷ 421 = 1.01187648456057
1.01187648456057 x 100 = 101.19%