970.31% is the change from 64 to 685
Calculation steps:
[( 685 - 64 ) ÷ 64] x 100 = 970.31%
Formula
Percentage change = [(685 - 64) / 64] x 100
Subtract the new number by the original number
685 - 64 = 621
621 ÷ 64 = 9.703125
9.703125 x 100 = 970.31%