1121.21% is the change from 66 to 806
Calculation steps:
[( 806 - 66 ) ÷ 66] x 100 = 1121.21%
Formula
Percentage change = [(806 - 66) / 66] x 100
Subtract the new number by the original number
806 - 66 = 740
740 ÷ 66 = 11.212121212121213
11.212121212121213 x 100 = 1121.21%