-75.92% is the change from 839 to 202
Calculation steps:
[( 202 - 839 ) ÷ 839] x 100 = -75.92%
Formula
Percentage change = [(202 - 839) / 839] x 100
Subtract the new number by the original number
202 - 839 = -637
-637 ÷ 839 = -0.7592371871275327
-0.7592371871275327 x 100 = -75.92%