-49.02% is the change from 102 to 52
Calculation steps:
[( 52 - 102 ) ÷ 102] x 100 = -49.02%
Formula
Percentage change = [(52 - 102) / 102] x 100
Subtract the new number by the original number
52 - 102 = -50
-50 ÷ 102 = -0.49019607843137253
-0.49019607843137253 x 100 = -49.02%