28.15% is the change from 643 to 824
Calculation steps:
[( 824 - 643 ) ÷ 643] x 100 = 28.15%
Formula
Percentage change = [(824 - 643) / 643] x 100
Subtract the new number by the original number
824 - 643 = 181
181 ÷ 643 = 0.28149300155520995
0.28149300155520995 x 100 = 28.15%