70.97% is the change from 248 to 424
Calculation steps:
[( 424 - 248 ) ÷ 248] x 100 = 70.97%
Formula
Percentage change = [(424 - 248) / 248] x 100
Subtract the new number by the original number
424 - 248 = 176
176 ÷ 248 = 0.7096774193548387
0.7096774193548387 x 100 = 70.97%