-97.22% is the change from 252 to 7
Calculation steps:
[( 7 - 252 ) ÷ 252] x 100 = -97.22%
Formula
Percentage change = [(7 - 252) / 252] x 100
Subtract the new number by the original number
7 - 252 = -245
-245 ÷ 252 = -0.9722222222222222
-0.9722222222222222 x 100 = -97.22%