93.46% is the change from 428 to 828
Calculation steps:
[( 828 - 428 ) ÷ 428] x 100 = 93.46%
Formula
Percentage change = [(828 - 428) / 428] x 100
Subtract the new number by the original number
828 - 428 = 400
400 ÷ 428 = 0.9345794392523364
0.9345794392523364 x 100 = 93.46%