514.29% is the change from 105 to 645
Calculation steps:
[( 645 - 105 ) ÷ 105] x 100 = 514.29%
Formula
Percentage change = [(645 - 105) / 105] x 100
Subtract the new number by the original number
645 - 105 = 540
540 ÷ 105 = 5.142857142857143
5.142857142857143 x 100 = 514.29%