-91.79% is the change from 207 to 17
Calculation steps:
[( 17 - 207 ) ÷ 207] x 100 = -91.79%
Formula
Percentage change = [(17 - 207) / 207] x 100
Subtract the new number by the original number
17 - 207 = -190
-190 ÷ 207 = -0.9178743961352657
-0.9178743961352657 x 100 = -91.79%