1488.24% is the change from 17 to 270
Calculation steps:
[( 270 - 17 ) ÷ 17] x 100 = 1488.24%
Formula
Percentage change = [(270 - 17) / 17] x 100
Subtract the new number by the original number
270 - 17 = 253
253 ÷ 17 = 14.882352941176471
14.882352941176471 x 100 = 1488.24%