-69.71% is the change from 307 to 93
Calculation steps:
[( 93 - 307 ) ÷ 307] x 100 = -69.71%
Formula
Percentage change = [(93 - 307) / 307] x 100
Subtract the new number by the original number
93 - 307 = -214
-214 ÷ 307 = -0.6970684039087948
-0.6970684039087948 x 100 = -69.71%