292.86% is the change from 70 to 275
Calculation steps:
[( 275 - 70 ) ÷ 70] x 100 = 292.86%
Formula
Percentage change = [(275 - 70) / 70] x 100
Subtract the new number by the original number
275 - 70 = 205
205 ÷ 70 = 2.9285714285714284
2.9285714285714284 x 100 = 292.86%