260.44% is the change from 91 to 328
Calculation steps:
[( 328 - 91 ) ÷ 91] x 100 = 260.44%
Formula
Percentage change = [(328 - 91) / 91] x 100
Subtract the new number by the original number
328 - 91 = 237
237 ÷ 91 = 2.6043956043956045
2.6043956043956045 x 100 = 260.44%