876.47% is the change from 68 to 664
Calculation steps:
[( 664 - 68 ) ÷ 68] x 100 = 876.47%
Formula
Percentage change = [(664 - 68) / 68] x 100
Subtract the new number by the original number
664 - 68 = 596
596 ÷ 68 = 8.764705882352942
8.764705882352942 x 100 = 876.47%