-78.51% is the change from 377 to 81
Calculation steps:
[( 81 - 377 ) ÷ 377] x 100 = -78.51%
Formula
Percentage change = [(81 - 377) / 377] x 100
Subtract the new number by the original number
81 - 377 = -296
-296 ÷ 377 = -0.7851458885941645
-0.7851458885941645 x 100 = -78.51%