940.91% is the change from 66 to 687
Calculation steps:
[( 687 - 66 ) ÷ 66] x 100 = 940.91%
Formula
Percentage change = [(687 - 66) / 66] x 100
Subtract the new number by the original number
687 - 66 = 621
621 ÷ 66 = 9.409090909090908
9.409090909090908 x 100 = 940.91%