1797.06% is the change from 34 to 645
Calculation steps:
[( 645 - 34 ) ÷ 34] x 100 = 1797.06%
Formula
Percentage change = [(645 - 34) / 34] x 100
Subtract the new number by the original number
645 - 34 = 611
611 ÷ 34 = 17.970588235294116
17.970588235294116 x 100 = 1797.06%