1257.78% is the change from 45 to 611
Calculation steps:
[( 611 - 45 ) ÷ 45] x 100 = 1257.78%
Formula
Percentage change = [(611 - 45) / 45] x 100
Subtract the new number by the original number
611 - 45 = 566
566 ÷ 45 = 12.577777777777778
12.577777777777778 x 100 = 1257.78%