344.44% is the change from 63 to 280
Calculation steps:
[( 280 - 63 ) ÷ 63] x 100 = 344.44%
Formula
Percentage change = [(280 - 63) / 63] x 100
Subtract the new number by the original number
280 - 63 = 217
217 ÷ 63 = 3.4444444444444446
3.4444444444444446 x 100 = 344.44%