643.33% is the change from 90 to 669
Calculation steps:
[( 669 - 90 ) ÷ 90] x 100 = 643.33%
Formula
Percentage change = [(669 - 90) / 90] x 100
Subtract the new number by the original number
669 - 90 = 579
579 ÷ 90 = 6.433333333333334
6.433333333333334 x 100 = 643.33%