-69.9% is the change from 299 to 90
Calculation steps:
[( 90 - 299 ) ÷ 299] x 100 = -69.9%
Formula
Percentage change = [(90 - 299) / 299] x 100
Subtract the new number by the original number
90 - 299 = -209
-209 ÷ 299 = -0.6989966555183946
-0.6989966555183946 x 100 = -69.9%