-56.86% is the change from 51 to 22
Calculation steps:
[( 22 - 51 ) ÷ 51] x 100 = -56.86%
Formula
Percentage change = [(22 - 51) / 51] x 100
Subtract the new number by the original number
22 - 51 = -29
-29 ÷ 51 = -0.5686274509803921
-0.5686274509803921 x 100 = -56.86%