1072.73% is the change from 55 to 645
Calculation steps:
[( 645 - 55 ) ÷ 55] x 100 = 1072.73%
Formula
Percentage change = [(645 - 55) / 55] x 100
Subtract the new number by the original number
645 - 55 = 590
590 ÷ 55 = 10.727272727272727
10.727272727272727 x 100 = 1072.73%