123.75% is the change from 421 to 942
Calculation steps:
[( 942 - 421 ) ÷ 421] x 100 = 123.75%
Formula
Percentage change = [(942 - 421) / 421] x 100
Subtract the new number by the original number
942 - 421 = 521
521 ÷ 421 = 1.2375296912114013
1.2375296912114013 x 100 = 123.75%