1420.31% is the change from 64 to 973
Calculation steps:
[( 973 - 64 ) ÷ 64] x 100 = 1420.31%
Formula
Percentage change = [(973 - 64) / 64] x 100
Subtract the new number by the original number
973 - 64 = 909
909 ÷ 64 = 14.203125
14.203125 x 100 = 1420.31%