21.71% is the change from 677 to 824
Calculation steps:
[( 824 - 677 ) ÷ 677] x 100 = 21.71%
Formula
Percentage change = [(824 - 677) / 677] x 100
Subtract the new number by the original number
824 - 677 = 147
147 ÷ 677 = 0.2171344165435746
0.2171344165435746 x 100 = 21.71%