-91.84% is the change from 49 to 4
Calculation steps:
[( 4 - 49 ) ÷ 49] x 100 = -91.84%
Formula
Percentage change = [(4 - 49) / 49] x 100
Subtract the new number by the original number
4 - 49 = -45
-45 ÷ 49 = -0.9183673469387755
-0.9183673469387755 x 100 = -91.84%