6.72% is the change from 253 to 270
Calculation steps:
[( 270 - 253 ) ÷ 253] x 100 = 6.72%
Formula
Percentage change = [(270 - 253) / 253] x 100
Subtract the new number by the original number
270 - 253 = 17
17 ÷ 253 = 0.06719367588932806
0.06719367588932806 x 100 = 6.72%