-73.93% is the change from 211 to 55
Calculation steps:
[( 55 - 211 ) ÷ 211] x 100 = -73.93%
Formula
Percentage change = [(55 - 211) / 211] x 100
Subtract the new number by the original number
55 - 211 = -156
-156 ÷ 211 = -0.7393364928909952
-0.7393364928909952 x 100 = -73.93%