-77.37% is the change from 517 to 117
Calculation steps:
[( 117 - 517 ) ÷ 517] x 100 = -77.37%
Formula
Percentage change = [(117 - 517) / 517] x 100
Subtract the new number by the original number
117 - 517 = -400
-400 ÷ 517 = -0.7736943907156673
-0.7736943907156673 x 100 = -77.37%