-73.43% is the change from 591 to 157
Calculation steps:
[( 157 - 591 ) ÷ 591] x 100 = -73.43%
Formula
Percentage change = [(157 - 591) / 591] x 100
Subtract the new number by the original number
157 - 591 = -434
-434 ÷ 591 = -0.7343485617597293
-0.7343485617597293 x 100 = -73.43%