-68.52% is the change from 162 to 51
Calculation steps:
[( 51 - 162 ) ÷ 162] x 100 = -68.52%
Formula
Percentage change = [(51 - 162) / 162] x 100
Subtract the new number by the original number
51 - 162 = -111
-111 ÷ 162 = -0.6851851851851852
-0.6851851851851852 x 100 = -68.52%