255.19% is the change from 270 to 959
Calculation steps:
[( 959 - 270 ) ÷ 270] x 100 = 255.19%
Formula
Percentage change = [(959 - 270) / 270] x 100
Subtract the new number by the original number
959 - 270 = 689
689 ÷ 270 = 2.551851851851852
2.551851851851852 x 100 = 255.19%