-87.64% is the change from 728 to 90
Calculation steps:
[( 90 - 728 ) ÷ 728] x 100 = -87.64%
Formula
Percentage change = [(90 - 728) / 728] x 100
Subtract the new number by the original number
90 - 728 = -638
-638 ÷ 728 = -0.8763736263736264
-0.8763736263736264 x 100 = -87.64%