-78.57% is the change from 126 to 27
Calculation steps:
[( 27 - 126 ) ÷ 126] x 100 = -78.57%
Formula
Percentage change = [(27 - 126) / 126] x 100
Subtract the new number by the original number
27 - 126 = -99
-99 ÷ 126 = -0.7857142857142857
-0.7857142857142857 x 100 = -78.57%