-88.1% is the change from 252 to 30
Calculation steps:
[( 30 - 252 ) ÷ 252] x 100 = -88.1%
Formula
Percentage change = [(30 - 252) / 252] x 100
Subtract the new number by the original number
30 - 252 = -222
-222 ÷ 252 = -0.8809523809523809
-0.8809523809523809 x 100 = -88.1%