258.8% is the change from 216 to 775
Calculation steps:
[( 775 - 216 ) ÷ 216] x 100 = 258.8%
Formula
Percentage change = [(775 - 216) / 216] x 100
Subtract the new number by the original number
775 - 216 = 559
559 ÷ 216 = 2.587962962962963
2.587962962962963 x 100 = 258.8%