-49.02% is the change from 51 to 26
Calculation steps:
[( 26 - 51 ) ÷ 51] x 100 = -49.02%
Formula
Percentage change = [(26 - 51) / 51] x 100
Subtract the new number by the original number
26 - 51 = -25
-25 ÷ 51 = -0.49019607843137253
-0.49019607843137253 x 100 = -49.02%