1207.81% is the change from 64 to 837
Calculation steps:
[( 837 - 64 ) ÷ 64] x 100 = 1207.81%
Formula
Percentage change = [(837 - 64) / 64] x 100
Subtract the new number by the original number
837 - 64 = 773
773 ÷ 64 = 12.078125
12.078125 x 100 = 1207.81%