8.74% is the change from 755 to 821
Calculation steps:
[( 821 - 755 ) ÷ 755] x 100 = 8.74%
Formula
Percentage change = [(821 - 755) / 755] x 100
Subtract the new number by the original number
821 - 755 = 66
66 ÷ 755 = 0.08741721854304636
0.08741721854304636 x 100 = 8.74%