6.63% is the change from 769 to 820
Calculation steps:
[( 820 - 769 ) ÷ 769] x 100 = 6.63%
Formula
Percentage change = [(820 - 769) / 769] x 100
Subtract the new number by the original number
820 - 769 = 51
51 ÷ 769 = 0.06631989596879063
0.06631989596879063 x 100 = 6.63%