-91.24% is the change from 491 to 43
Calculation steps:
[( 43 - 491 ) ÷ 491] x 100 = -91.24%
Formula
Percentage change = [(43 - 491) / 491] x 100
Subtract the new number by the original number
43 - 491 = -448
-448 ÷ 491 = -0.9124236252545825
-0.9124236252545825 x 100 = -91.24%