-85.81% is the change from 148 to 21
Calculation steps:
[( 21 - 148 ) ÷ 148] x 100 = -85.81%
Formula
Percentage change = [(21 - 148) / 148] x 100
Subtract the new number by the original number
21 - 148 = -127
-127 ÷ 148 = -0.8581081081081081
-0.8581081081081081 x 100 = -85.81%