1214.06% is the change from 64 to 841
Calculation steps:
[( 841 - 64 ) ÷ 64] x 100 = 1214.06%
Formula
Percentage change = [(841 - 64) / 64] x 100
Subtract the new number by the original number
841 - 64 = 777
777 ÷ 64 = 12.140625
12.140625 x 100 = 1214.06%