1204.55% is the change from 66 to 861
Calculation steps:
[( 861 - 66 ) ÷ 66] x 100 = 1204.55%
Formula
Percentage change = [(861 - 66) / 66] x 100
Subtract the new number by the original number
861 - 66 = 795
795 ÷ 66 = 12.045454545454545
12.045454545454545 x 100 = 1204.55%