167.33% is the change from 251 to 671
Calculation steps:
[( 671 - 251 ) ÷ 251] x 100 = 167.33%
Formula
Percentage change = [(671 - 251) / 251] x 100
Subtract the new number by the original number
671 - 251 = 420
420 ÷ 251 = 1.6733067729083666
1.6733067729083666 x 100 = 167.33%