276.71% is the change from 146 to 550
Calculation steps:
[( 550 - 146 ) ÷ 146] x 100 = 276.71%
Formula
Percentage change = [(550 - 146) / 146] x 100
Subtract the new number by the original number
550 - 146 = 404
404 ÷ 146 = 2.767123287671233
2.767123287671233 x 100 = 276.71%