216.49% is the change from 97 to 307
Calculation steps:
[( 307 - 97 ) ÷ 97] x 100 = 216.49%
Formula
Percentage change = [(307 - 97) / 97] x 100
Subtract the new number by the original number
307 - 97 = 210
210 ÷ 97 = 2.1649484536082473
2.1649484536082473 x 100 = 216.49%