100.23% is the change from 428 to 857
Calculation steps:
[( 857 - 428 ) ÷ 428] x 100 = 100.23%
Formula
Percentage change = [(857 - 428) / 428] x 100
Subtract the new number by the original number
857 - 428 = 429
429 ÷ 428 = 1.0023364485981308
1.0023364485981308 x 100 = 100.23%