1239.39% is the change from 66 to 884
Calculation steps:
[( 884 - 66 ) ÷ 66] x 100 = 1239.39%
Formula
Percentage change = [(884 - 66) / 66] x 100
Subtract the new number by the original number
884 - 66 = 818
818 ÷ 66 = 12.393939393939394
12.393939393939394 x 100 = 1239.39%