127.32% is the change from 421 to 957
Calculation steps:
[( 957 - 421 ) ÷ 421] x 100 = 127.32%
Formula
Percentage change = [(957 - 421) / 421] x 100
Subtract the new number by the original number
957 - 421 = 536
536 ÷ 421 = 1.2731591448931117
1.2731591448931117 x 100 = 127.32%