848.53% is the change from 68 to 645
Calculation steps:
[( 645 - 68 ) ÷ 68] x 100 = 848.53%
Formula
Percentage change = [(645 - 68) / 68] x 100
Subtract the new number by the original number
645 - 68 = 577
577 ÷ 68 = 8.485294117647058
8.485294117647058 x 100 = 848.53%