256.7% is the change from 97 to 346
Calculation steps:
[( 346 - 97 ) ÷ 97] x 100 = 256.7%
Formula
Percentage change = [(346 - 97) / 97] x 100
Subtract the new number by the original number
346 - 97 = 249
249 ÷ 97 = 2.5670103092783507
2.5670103092783507 x 100 = 256.7%