169.48% is the change from 249 to 671
Calculation steps:
[( 671 - 249 ) ÷ 249] x 100 = 169.48%
Formula
Percentage change = [(671 - 249) / 249] x 100
Subtract the new number by the original number
671 - 249 = 422
422 ÷ 249 = 1.6947791164658634
1.6947791164658634 x 100 = 169.48%