1369.7% is the change from 66 to 970
Calculation steps:
[( 970 - 66 ) ÷ 66] x 100 = 1369.7%
Formula
Percentage change = [(970 - 66) / 66] x 100
Subtract the new number by the original number
970 - 66 = 904
904 ÷ 66 = 13.696969696969697
13.696969696969697 x 100 = 1369.7%