-93.02% is the change from 172 to 12
Calculation steps:
[( 12 - 172 ) ÷ 172] x 100 = -93.02%
Formula
Percentage change = [(12 - 172) / 172] x 100
Subtract the new number by the original number
12 - 172 = -160
-160 ÷ 172 = -0.9302325581395349
-0.9302325581395349 x 100 = -93.02%