-78.85% is the change from 837 to 177
Calculation steps:
[( 177 - 837 ) ÷ 837] x 100 = -78.85%
Formula
Percentage change = [(177 - 837) / 837] x 100
Subtract the new number by the original number
177 - 837 = -660
-660 ÷ 837 = -0.7885304659498208
-0.7885304659498208 x 100 = -78.85%