-81.88% is the change from 149 to 27
Calculation steps:
[( 27 - 149 ) ÷ 149] x 100 = -81.88%
Formula
Percentage change = [(27 - 149) / 149] x 100
Subtract the new number by the original number
27 - 149 = -122
-122 ÷ 149 = -0.8187919463087249
-0.8187919463087249 x 100 = -81.88%