847.06% is the change from 68 to 644
Calculation steps:
[( 644 - 68 ) ÷ 68] x 100 = 847.06%
Formula
Percentage change = [(644 - 68) / 68] x 100
Subtract the new number by the original number
644 - 68 = 576
576 ÷ 68 = 8.470588235294118
8.470588235294118 x 100 = 847.06%