-65.4% is the change from 211 to 73
Calculation steps:
[( 73 - 211 ) ÷ 211] x 100 = -65.4%
Formula
Percentage change = [(73 - 211) / 211] x 100
Subtract the new number by the original number
73 - 211 = -138
-138 ÷ 211 = -0.6540284360189573
-0.6540284360189573 x 100 = -65.4%