-87.04% is the change from 54 to 7
Calculation steps:
[( 7 - 54 ) ÷ 54] x 100 = -87.04%
Formula
Percentage change = [(7 - 54) / 54] x 100
Subtract the new number by the original number
7 - 54 = -47
-47 ÷ 54 = -0.8703703703703703
-0.8703703703703703 x 100 = -87.04%