-53.49% is the change from 172 to 80
Calculation steps:
[( 80 - 172 ) ÷ 172] x 100 = -53.49%
Formula
Percentage change = [(80 - 172) / 172] x 100
Subtract the new number by the original number
80 - 172 = -92
-92 ÷ 172 = -0.5348837209302325
-0.5348837209302325 x 100 = -53.49%