257.87% is the change from 216 to 773
Calculation steps:
[( 773 - 216 ) ÷ 216] x 100 = 257.87%
Formula
Percentage change = [(773 - 216) / 216] x 100
Subtract the new number by the original number
773 - 216 = 557
557 ÷ 216 = 2.5787037037037037
2.5787037037037037 x 100 = 257.87%