-77.3% is the change from 185 to 42
Calculation steps:
[( 42 - 185 ) ÷ 185] x 100 = -77.3%
Formula
Percentage change = [(42 - 185) / 185] x 100
Subtract the new number by the original number
42 - 185 = -143
-143 ÷ 185 = -0.772972972972973
-0.772972972972973 x 100 = -77.3%