260.37% is the change from 270 to 973
Calculation steps:
[( 973 - 270 ) ÷ 270] x 100 = 260.37%
Formula
Percentage change = [(973 - 270) / 270] x 100
Subtract the new number by the original number
973 - 270 = 703
703 ÷ 270 = 2.6037037037037036
2.6037037037037036 x 100 = 260.37%