121.5% is the change from 428 to 948
Calculation steps:
[( 948 - 428 ) ÷ 428] x 100 = 121.5%
Formula
Percentage change = [(948 - 428) / 428] x 100
Subtract the new number by the original number
948 - 428 = 520
520 ÷ 428 = 1.2149532710280373
1.2149532710280373 x 100 = 121.5%