268.57% is the change from 70 to 258
Calculation steps:
[( 258 - 70 ) ÷ 70] x 100 = 268.57%
Formula
Percentage change = [(258 - 70) / 70] x 100
Subtract the new number by the original number
258 - 70 = 188
188 ÷ 70 = 2.6857142857142855
2.6857142857142855 x 100 = 268.57%