-81.5% is the change from 508 to 94
Calculation steps:
[( 94 - 508 ) ÷ 508] x 100 = -81.5%
Formula
Percentage change = [(94 - 508) / 508] x 100
Subtract the new number by the original number
94 - 508 = -414
-414 ÷ 508 = -0.8149606299212598
-0.8149606299212598 x 100 = -81.5%