-56.18% is the change from 178 to 78
Calculation steps:
[( 78 - 178 ) ÷ 178] x 100 = -56.18%
Formula
Percentage change = [(78 - 178) / 178] x 100
Subtract the new number by the original number
78 - 178 = -100
-100 ÷ 178 = -0.5617977528089888
-0.5617977528089888 x 100 = -56.18%