201.79% is the change from 280 to 845
Calculation steps:
[( 845 - 280 ) ÷ 280] x 100 = 201.79%
Formula
Percentage change = [(845 - 280) / 280] x 100
Subtract the new number by the original number
845 - 280 = 565
565 ÷ 280 = 2.017857142857143
2.017857142857143 x 100 = 201.79%