-53.7% is the change from 108 to 50
Calculation steps:
[( 50 - 108 ) ÷ 108] x 100 = -53.7%
Formula
Percentage change = [(50 - 108) / 108] x 100
Subtract the new number by the original number
50 - 108 = -58
-58 ÷ 108 = -0.5370370370370371
-0.5370370370370371 x 100 = -53.7%