254.29% is the change from 70 to 248
Calculation steps:
[( 248 - 70 ) ÷ 70] x 100 = 254.29%
Formula
Percentage change = [(248 - 70) / 70] x 100
Subtract the new number by the original number
248 - 70 = 178
178 ÷ 70 = 2.5428571428571427
2.5428571428571427 x 100 = 254.29%