-83.8% is the change from 142 to 23
Calculation steps:
[( 23 - 142 ) ÷ 142] x 100 = -83.8%
Formula
Percentage change = [(23 - 142) / 142] x 100
Subtract the new number by the original number
23 - 142 = -119
-119 ÷ 142 = -0.8380281690140845
-0.8380281690140845 x 100 = -83.8%