172.4% is the change from 250 to 681
Calculation steps:
[( 681 - 250 ) ÷ 250] x 100 = 172.4%
Formula
Percentage change = [(681 - 250) / 250] x 100
Subtract the new number by the original number
681 - 250 = 431
431 ÷ 250 = 1.724
1.724 x 100 = 172.4%
Example