-76.33% is the change from 300 to 71
Calculation steps:
[( 71 - 300 ) ÷ 300] x 100 = -76.33%
Formula
Percentage change = [(71 - 300) / 300] x 100
Subtract the new number by the original number
71 - 300 = -229
-229 ÷ 300 = -0.7633333333333333
-0.7633333333333333 x 100 = -76.33%