94.56% is the change from 423 to 823
Calculation steps:
[( 823 - 423 ) ÷ 423] x 100 = 94.56%
Formula
Percentage change = [(823 - 423) / 423] x 100
Subtract the new number by the original number
823 - 423 = 400
400 ÷ 423 = 0.9456264775413712
0.9456264775413712 x 100 = 94.56%