-52.1% is the change from 167 to 80
Calculation steps:
[( 80 - 167 ) ÷ 167] x 100 = -52.1%
Formula
Percentage change = [(80 - 167) / 167] x 100
Subtract the new number by the original number
80 - 167 = -87
-87 ÷ 167 = -0.5209580838323353
-0.5209580838323353 x 100 = -52.1%