1287.88% is the change from 66 to 916
Calculation steps:
[( 916 - 66 ) ÷ 66] x 100 = 1287.88%
Formula
Percentage change = [(916 - 66) / 66] x 100
Subtract the new number by the original number
916 - 66 = 850
850 ÷ 66 = 12.878787878787879
12.878787878787879 x 100 = 1287.88%