1315.71% is the change from 70 to 991
Calculation steps:
[( 991 - 70 ) ÷ 70] x 100 = 1315.71%
Formula
Percentage change = [(991 - 70) / 70] x 100
Subtract the new number by the original number
991 - 70 = 921
921 ÷ 70 = 13.157142857142857
13.157142857142857 x 100 = 1315.71%