250.7% is the change from 71 to 249
Calculation steps:
[( 249 - 71 ) ÷ 71] x 100 = 250.7%
Formula
Percentage change = [(249 - 71) / 71] x 100
Subtract the new number by the original number
249 - 71 = 178
178 ÷ 71 = 2.507042253521127
2.507042253521127 x 100 = 250.7%