281.18% is the change from 85 to 324
Calculation steps:
[( 324 - 85 ) ÷ 85] x 100 = 281.18%
Formula
Percentage change = [(324 - 85) / 85] x 100
Subtract the new number by the original number
324 - 85 = 239
239 ÷ 85 = 2.8117647058823527
2.8117647058823527 x 100 = 281.18%