-69.44% is the change from 517 to 158
Calculation steps:
[( 158 - 517 ) ÷ 517] x 100 = -69.44%
Formula
Percentage change = [(158 - 517) / 517] x 100
Subtract the new number by the original number
158 - 517 = -359
-359 ÷ 517 = -0.6943907156673114
-0.6943907156673114 x 100 = -69.44%