278.57% is the change from 70 to 265
Calculation steps:
[( 265 - 70 ) ÷ 70] x 100 = 278.57%
Formula
Percentage change = [(265 - 70) / 70] x 100
Subtract the new number by the original number
265 - 70 = 195
195 ÷ 70 = 2.7857142857142856
2.7857142857142856 x 100 = 278.57%