973.44% is the change from 64 to 687
Calculation steps:
[( 687 - 64 ) ÷ 64] x 100 = 973.44%
Formula
Percentage change = [(687 - 64) / 64] x 100
Subtract the new number by the original number
687 - 64 = 623
623 ÷ 64 = 9.734375
9.734375 x 100 = 973.44%