25% is the change from 216 to 270
Calculation steps:
[( 270 - 216 ) ÷ 216] x 100 = 25%
Formula
Percentage change = [(270 - 216) / 216] x 100
Subtract the new number by the original number
270 - 216 = 54
54 ÷ 216 = 0.25
0.25 x 100 = 25%
Example