284.25% is the change from 146 to 561
Calculation steps:
[( 561 - 146 ) ÷ 146] x 100 = 284.25%
Formula
Percentage change = [(561 - 146) / 146] x 100
Subtract the new number by the original number
561 - 146 = 415
415 ÷ 146 = 2.8424657534246576
2.8424657534246576 x 100 = 284.25%