127.79% is the change from 421 to 959
Calculation steps:
[( 959 - 421 ) ÷ 421] x 100 = 127.79%
Formula
Percentage change = [(959 - 421) / 421] x 100
Subtract the new number by the original number
959 - 421 = 538
538 ÷ 421 = 1.2779097387173397
1.2779097387173397 x 100 = 127.79%