257.78% is the change from 90 to 322
Calculation steps:
[( 322 - 90 ) ÷ 90] x 100 = 257.78%
Formula
Percentage change = [(322 - 90) / 90] x 100
Subtract the new number by the original number
322 - 90 = 232
232 ÷ 90 = 2.577777777777778
2.577777777777778 x 100 = 257.78%