-62.96% is the change from 27 to 10
Calculation steps:
[( 10 - 27 ) ÷ 27] x 100 = -62.96%
Formula
Percentage change = [(10 - 27) / 27] x 100
Subtract the new number by the original number
10 - 27 = -17
-17 ÷ 27 = -0.6296296296296297
-0.6296296296296297 x 100 = -62.96%