-91.85% is the change from 270 to 22
Calculation steps:
[( 22 - 270 ) ÷ 270] x 100 = -91.85%
Formula
Percentage change = [(22 - 270) / 270] x 100
Subtract the new number by the original number
22 - 270 = -248
-248 ÷ 270 = -0.9185185185185185
-0.9185185185185185 x 100 = -91.85%