-46.43% is the change from 168 to 90
Calculation steps:
[( 90 - 168 ) ÷ 168] x 100 = -46.43%
Formula
Percentage change = [(90 - 168) / 168] x 100
Subtract the new number by the original number
90 - 168 = -78
-78 ÷ 168 = -0.4642857142857143
-0.4642857142857143 x 100 = -46.43%