100.71% is the change from 423 to 849
Calculation steps:
[( 849 - 423 ) ÷ 423] x 100 = 100.71%
Formula
Percentage change = [(849 - 423) / 423] x 100
Subtract the new number by the original number
849 - 423 = 426
426 ÷ 423 = 1.0070921985815602
1.0070921985815602 x 100 = 100.71%