288.57% is the change from 70 to 272
Calculation steps:
[( 272 - 70 ) ÷ 70] x 100 = 288.57%
Formula
Percentage change = [(272 - 70) / 70] x 100
Subtract the new number by the original number
272 - 70 = 202
202 ÷ 70 = 2.8857142857142857
2.8857142857142857 x 100 = 288.57%