-78.49% is the change from 837 to 180
Calculation steps:
[( 180 - 837 ) ÷ 837] x 100 = -78.49%
Formula
Percentage change = [(180 - 837) / 837] x 100
Subtract the new number by the original number
180 - 837 = -657
-657 ÷ 837 = -0.7849462365591398
-0.7849462365591398 x 100 = -78.49%