3437.5% is the change from 8 to 283
Calculation steps:
[( 283 - 8 ) ÷ 8] x 100 = 3437.5%
Formula
Percentage change = [(283 - 8) / 8] x 100
Subtract the new number by the original number
283 - 8 = 275
275 ÷ 8 = 34.375
34.375 x 100 = 3437.5%
Example