-61.9% is the change from 42 to 16
Calculation steps:
[( 16 - 42 ) ÷ 42] x 100 = -61.9%
Formula
Percentage change = [(16 - 42) / 42] x 100
Subtract the new number by the original number
16 - 42 = -26
-26 ÷ 42 = -0.6190476190476191
-0.6190476190476191 x 100 = -61.9%