-86.52% is the change from 690 to 93
Calculation steps:
[( 93 - 690 ) ÷ 690] x 100 = -86.52%
Formula
Percentage change = [(93 - 690) / 690] x 100
Subtract the new number by the original number
93 - 690 = -597
-597 ÷ 690 = -0.8652173913043478
-0.8652173913043478 x 100 = -86.52%