271.37% is the change from 248 to 921
Calculation steps:
[( 921 - 248 ) ÷ 248] x 100 = 271.37%
Formula
Percentage change = [(921 - 248) / 248] x 100
Subtract the new number by the original number
921 - 248 = 673
673 ÷ 248 = 2.713709677419355
2.713709677419355 x 100 = 271.37%