249.41% is the change from 85 to 297
Calculation steps:
[( 297 - 85 ) ÷ 85] x 100 = 249.41%
Formula
Percentage change = [(297 - 85) / 85] x 100
Subtract the new number by the original number
297 - 85 = 212
212 ÷ 85 = 2.4941176470588236
2.4941176470588236 x 100 = 249.41%