-55.37% is the change from 177 to 79
Calculation steps:
[( 79 - 177 ) ÷ 177] x 100 = -55.37%
Formula
Percentage change = [(79 - 177) / 177] x 100
Subtract the new number by the original number
79 - 177 = -98
-98 ÷ 177 = -0.5536723163841808
-0.5536723163841808 x 100 = -55.37%