396% is the change from 50 to 248
Calculation steps:
[( 248 - 50 ) ÷ 50] x 100 = 396%
Formula
Percentage change = [(248 - 50) / 50] x 100
Subtract the new number by the original number
248 - 50 = 198
198 ÷ 50 = 3.96
3.96 x 100 = 396%
Example