28.35% is the change from 642 to 824
Calculation steps:
[( 824 - 642 ) ÷ 642] x 100 = 28.35%
Formula
Percentage change = [(824 - 642) / 642] x 100
Subtract the new number by the original number
824 - 642 = 182
182 ÷ 642 = 0.2834890965732087
0.2834890965732087 x 100 = 28.35%