386.27% is the change from 51 to 248
Calculation steps:
[( 248 - 51 ) ÷ 51] x 100 = 386.27%
Formula
Percentage change = [(248 - 51) / 51] x 100
Subtract the new number by the original number
248 - 51 = 197
197 ÷ 51 = 3.8627450980392157
3.8627450980392157 x 100 = 386.27%