-36.13% is the change from 537 to 343
Calculation steps:
[( 343 - 537 ) ÷ 537] x 100 = -36.13%
Formula
Percentage change = [(343 - 537) / 537] x 100
Subtract the new number by the original number
343 - 537 = -194
-194 ÷ 537 = -0.3612662942271881
-0.3612662942271881 x 100 = -36.13%