-67.98% is the change from 253 to 81
Calculation steps:
[( 81 - 253 ) ÷ 253] x 100 = -67.98%
Formula
Percentage change = [(81 - 253) / 253] x 100
Subtract the new number by the original number
81 - 253 = -172
-172 ÷ 253 = -0.6798418972332015
-0.6798418972332015 x 100 = -67.98%