-74.63% is the change from 67 to 17
Calculation steps:
[( 17 - 67 ) ÷ 67] x 100 = -74.63%
Formula
Percentage change = [(17 - 67) / 67] x 100
Subtract the new number by the original number
17 - 67 = -50
-50 ÷ 67 = -0.746268656716418
-0.746268656716418 x 100 = -74.63%