-54.84% is the change from 93 to 42
Calculation steps:
[( 42 - 93 ) ÷ 93] x 100 = -54.84%
Formula
Percentage change = [(42 - 93) / 93] x 100
Subtract the new number by the original number
42 - 93 = -51
-51 ÷ 93 = -0.5483870967741935
-0.5483870967741935 x 100 = -54.84%