175.3% is the change from 251 to 691
Calculation steps:
[( 691 - 251 ) ÷ 251] x 100 = 175.3%
Formula
Percentage change = [(691 - 251) / 251] x 100
Subtract the new number by the original number
691 - 251 = 440
440 ÷ 251 = 1.752988047808765
1.752988047808765 x 100 = 175.3%