234.93% is the change from 146 to 489
Calculation steps:
[( 489 - 146 ) ÷ 146] x 100 = 234.93%
Formula
Percentage change = [(489 - 146) / 146] x 100
Subtract the new number by the original number
489 - 146 = 343
343 ÷ 146 = 2.3493150684931505
2.3493150684931505 x 100 = 234.93%