-91.3% is the change from 46 to 4
Calculation steps:
[( 4 - 46 ) ÷ 46] x 100 = -91.3%
Formula
Percentage change = [(4 - 46) / 46] x 100
Subtract the new number by the original number
4 - 46 = -42
-42 ÷ 46 = -0.9130434782608695
-0.9130434782608695 x 100 = -91.3%